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Was lead developer at a small startup, I was hiring and had a budget to add 3 new people to my team to develop a new product for the company.
Some context first and then the rant!
Candidate 1 - Amazing, a dev I worked with before who was under utilized at the previous company. Still a junior, but, she was a quick learner and eager to expand her knowledge, never an issue.
Candidate 2 - Kickass dev with back end skills and extras, he was always eager to work a bit more than what was expected. I use to send him home early to annoy him. haha!
Candidate 3 - Lets call him P.
In the interview he answers every question perfectly, he asks all the right questions and suggests some things I havent even thought of. CTO goes ahead and says we should skip the technical test and just hire the guy, his smart and knows what his talking about, I agree and we hire him. (We where a bit desperate at this stage as well.)
He comes in a week early to pick up his work laptop to get setup before he starts the next week, awesome! This guy is going to be an asset to the company, cant wait to have him join the team - The CTO at this stage is getting ready to leave the company and I will be taking over the division and need someone to take over lead position, he seems like the guys to do it.
The guys starts the next week, he comes in and the laptop we gave him is now a local server for testing and he will be working off his own laptop, no issue, we are small so needed a testing stack, but wasnt really needed since we had procedures in place for this already.
Here is where everything goes wrong!!! First day goes great... Next day he gets in early 6:30am (Nice! NO!), he absolutely smells, no stinks, of weed, not a light smell, the entire fucking office smells of weed! (I have no problem with weed, just dont make it my problem to deal with). I get called by boss and told to sort this out people are complaining! I drive to office and have a meeting with him, he says its all good he understands. (This was Friday).
Monday comes around - Get a call from Boss at 7:30am. Whole office smells like weed, please talk to P again, this cannot happen again. I drive to office again, and he again says it wont happen again, he has some issues with back pain and the weed helps.
Tuesday - Same fucking thing! And now he doesnt want to sign for the laptop("server") that was given to him, and has moved to code in the boardroom, WHERE OUR FUCKING CLIENTS WILL BE VIEWING A DEMO THAT DAY OF THE PRODUCT!! Now that whole room smells like weed, FML!
Wednesday - We send P a formal letter that he is under probation, P calls me to have a meeting. In the meeting he blames me for not understanding "new age" medicine, I ask for his doctors prescription and ask why he didnt tell me this in the interview so I could make arrangements, we dont care if you are stoned, just do good work and be considerate to your co-workers. P cant provide these and keeps ranting, I suggest he takes pain killers, he has none of it only "new age" medicine for him.
Thursday - I ask him to rather "work" from home till we can get this sorted, he comes in for code reviews for 2 weeks. I can clearly see he has no idea how the system works but is trying, I thought I will dive deeper and look at all of his code. Its a mess, nothing makes sense and 50% of it is hard coded (We are building a decentralized API for huge data sets so this makes no sense).
Friday - In code review I confront him about this, he has excuses for everything, I start asking him harder questions about the project and to explain what we are building - he goes quiet and quits on the spot with a shitty apology.
From what I could make out he was really smart when it came to theory but interpreting the theory to actual practice wasnt possible for him, probably would have been easier if he wasnt high all the time.
I hate interview code tests, but learned a valuable lesson that day! Always test for some code knowledge as well even if you hate doing it, ask the right questions and be careful who you hire! You can only bullshit for so long in coding before someone figures out that you are a fraud.16 -
A couple of months back I got an interview for a junior android devel position. I do not consider myself a junior devel, bt fuck it they paid 78k a year plus benefits and this is for south texas where it ain't thaaat expensive. So i kept my mouth shut and went with it.
The company was glorious, one of those hipsert marketing companies with cool couches and shit and people doing fuckign whatever all over the place and cool tools and desks.
So the initial interview with the hr dept went amazing, real cool guys and very down to earth. Next was the senior android dev.
This dude.
It was to be a phone interview, with a lil coding test. Fine whatevs. But the moment he called i knew shit was going down hill. Dude sounded dead af. Like he could not stand being himself that day. Asked asshole questions that every developer in Android should know that were frankly quite insulting ("what company develops the Android os" kind of deal) but kept my mouth shut and answered as needed.
Then the coding portion. Given a string, find the first position of the first repeated char, so if I had , fuck i dunno "tetas" then t was the first (and only) char repeated and it should have given out 2.
Legit finished it up in less than 6 mins and only because he was making me explain my entire thought process.
He got angry for some reason. Mind you I speak like a hippie, with a melow town and calm voice all the damned time, got that Texas swag going on as well as any good ol' boy from Texas should right?
Well this dude was not having none of that shit that day.
Dude was all like "ok now....why exactly did you do it this way?"
With a VERY condescending tone. And i explained that at first I normally think about solutions in pseudocode, so I wrote that as well...1 min or less. In python. This is after I still had the Java solution on screen with perfectly clean and working Java. I saif that since Python was as close to pseudocode as it gets that I figured i would just write the "pseudocode" in python and then map it to Java with all the required modifications.
"Welk i did not ask you to write it in java, so i dunno why you would even do that to begin with"
That is one of many asshole remarks. The first when I mentioned that I found React Native good for prototyping complex ideas for FUCKING FUN. Passion motherfucker. Shit so fly I do it for fun. "We don't deal with that here so I am not interested in what you can do with that or how would it help me"
Mofocka plz.
Well going back to the python shit. I explain (calmly) that it was just a way that I had to figure details, to think of different implementations. He continues by saying that it takes valuable company time.
Then he proceeds to tell me that he believes that i cheated since i fi ished the java "problem" too fast.
I told him that simple stuff like that should take even less for any senior java dev and that we could run another example if he wanted.
Bring it puto.
But no.
He then said that he still did not understand the need for Python in my solution. I lost it.
"Look man, getting real tired of your tone, i explained already, it is just a mental process, i do this when comming up with solutions, thinking in theory, not languages, helps me bridge the gap between problem and implementation, the solution works, it is efficient and fast and i can do it in 5 diff ways if you wanted, i offered and you said no. Don't really know what else you want"
"All i am saying, i am not going to hire you if you are going to be writing Python for Android, that is useless to me"
Lost it more.
I do sound different when pissed. So I basically told him that he asked for my reasoning behind and it was given, that not getting it was a you problem.
Sooooo did not get the job. Was relieved really. Can't imagine having a twat like that as a lead devel.19 -
Dogecoin hit USD $0.40 recently, which means it's time for the Crypto Rant.
TL;DR: Dogecoin is shit and is logically guaranteed to eventually fall unless it is fundamentally changed.
===========================
If you know how Crypto works under the hood, you can skip to the next section. If you don't, here's the general xyz-coin formula:
Money is sent via transactions, which are validated by *anybody*.
Since transactions are validated by anybody, the system needs to make sure you're not fucking it up on purpose.
The current idea (that most coins use today) is called proof-of-work. In short, you're given an extremely difficult task, and the general idea is you wouldn't be willing to do that work if you were just going to fuck up the system.
For validating these transactions, you are rewarded twofold:
1) You are given a fixed-size prize of the currency from the system itself. This is how new currency is introduced, or "minted" if you prefer.
2) You are given variable-size and user-determined prize called "transaction fees", but it could be more accurately called a "bribe" since it's sole purpose is to entice miners to add YOUR transaction to their block.
This system of validation and reward is called mining.
===========================
This smaller section compares the design o f BTC to Dogecoin - which will lead to my final argument
In BTC, the time between blocks (chunks of data which record transactions and are added to the chain, hence blockchain) is ten minutes. Every ten minutes, BTC transactions are validated and new Bitcoins are born.
In Dogecoin, the time between blocks is only one minute. In Theory, this means that mining Dogecoin is about ten times easier, because the system expects you to be able to solve the proof of work in an average of one minute.
The huge difference between BTC and Doge is the block reward (Fixed amount; new coins minted). The block reward for BTC is somewhat complicated compared to Doge: It started as 50 BTC per block and every 4 years it is halved ("the great halving"). Right now it's 6.25 BTC per block. Soon, the block reward will be almost nothing until BTC hits it's max of 21 million bitcoins "minted".
Dogecoin reward is 10,000 coins per block. And it will be that way for the end of time - no maximum, no great halving. And remember, for every 1 BTC block mined, 10 Doge blocks are mined.
===========================
Bitcoin and Dogecoin are now the two most popular coins in pop culture. What makes me angry is the widespread misunderstanding of the differences between the two. It is likely that most investors buy Dogecoin thinking they're getting in "early" because it's so cheap. They think it's cheap because it isn't as popular as Bitcoin yet. They're wrong. It's cheap because of what's outlined in section two of this rant.
Dogecoin is actually not very far off Bitcoin. Do the math: there's a bit over 100 billion Dogecoin in circulation (130b). There's about 20 million BTC. Calculate their total CURRENT values:
130b * $0.40 = 52b
20m * $60k = 1.2t
...and Doge is rising much, much faster than BTC because of the aforementioned lack of understanding.
The most common thing I hear about Doge is that "nobody expects it to reach Bitcoin levels" (referring to being worth 60k a fucking coin). They don't realize that if Doge gets to be worth just $10 a coin, it will not just reach Bitcoin levels but overtake Bitcoin in value ($1.3T).
===========================
It's worth highlighting that Dogecoin is literally designed to fail. Since it lacks a cap on new coins being introduced, it's just simple math that no matter how much Doge rises, it will eventually be worthless. And it won't take centuries, remember that 100k new Doge are mined EVERY TEN MINUTES. 1,440 minutes in a day * 10K per minute is 14.4 million new coins per day. That's damn near every Bitcoin to ever exist mined every day in Dogecoin
10 -
iPhones are ridiculously picky when it comes to finding a mate- um charger. And knowing why doesn't really make it any easier to understand why. If anything it baffles me more.
So, let's start with appliances that are not phones. Think Bluetooth headsets, keyboards, earbuds, whatever. Those are simple devices. They see 5V on the VCC line and 0V on ground, and they will charge at whatever current they are meant to. Usually it will not exceed 200mA, and the USB 2.0 spec allows for up to 500mA from any USB outlet. So that's perfectly reasonable to be done without any fuss whatsoever.
Phones on the other hand are smarter.. some might say too smart for their own good. In this case I will only cover Android phones, because while they are smarter than they perhaps should be, they are still reasonable.
So if you connect an Android phone to the same 5V VCC and 0V ground, while leaving the data lines floating, the phone will charge at 500mA. This is exactly to be within USB 2.0 spec, as mentioned earlier. Without the data lines, the phone has no way to tell whether it *can* pull more, without *actually* trying to pull more (potentially frying a charger that's not rated for it). Now in an Android phone you can tell it to pull more, in a fairly straightforward way. You just short the data lines together, and the phone will recognize this as a simple charger that it can pull 1A from. Note that shorting data lines is not a bad thing, we do it all the time. It is just another term for making a connection between 2 points. Android does this right. Also note that shorted data lines cannot be used to send data. They are inherently pulled to the same voltage level, probably 0V but not sure.
And then the iPhones come in, Thinking Different. The iPhones require you to pull the data lines to some very specific voltage levels. And of course it's terribly documented because iSheep just trying to use their Apple original white nugget charger overseas and shit like that. I do not know which voltage levels they are (please let me know!), but it is certainly not a regular short. Now you connect the iPhone to, say, a laptop or something to charge. An Android phone would just charge while keeping data transmission disabled (because they can be left floating or shorted). This is for security reasons mostly, preventing e.g. a malicious computer from messing with it. An iPhone needs to be unlocked to just charge the damn thing. I'm fairly sure that that's because the data lines need to be pulled up, which could in theory enable a malicious computer to still get some information in or out of it. USB data transmission works at at least 200mV difference between the data lines. It could be more than that. So you need to unlock it.
Apple, how about you just short your goddamn data lines too like everyone else? And while you're at it, get rid of this Lightning connector. I get it, micro USB was too hard for your users. I guess they are blind pigs after all. But USB-C solved all of that and more. The only difference I can think of is that the Lightning connector can be a single board with pads on either side on the connector, while in USB-C that could be at the socket end (socket being less common to be replaced). And at the end of the day, that really doesn't matter with all the other things that will break first.
Think Different. Think Retarded. Such tiny batteries and you can't even fucking charge them properly.6 -
I'm so fucking done with net neutrality. the only ones who want it are verion, comcast, and other big isps.
fuck them.
this is fucking merica. nobody wants it, and this is a government designed for the people. I guess it only works in theory.
the talk about this has been fucking exhausting. how much clearer could it be?
how does it keep coming up? so much of the economy is online. why would congress want this? this should be a fucking fundamental right. no bs, just fast speeds everywhere. i hate all the isps thinking that because the world is so reliant on the internet, they control everything.
isps are a service. that's it.
they're not a profiler or advertiser, just a service.
and if that changes, I'll buy a bunch of flash drives and go offline.
bottom line, we should have privacy, neutrality, and a safe web. fuck those greedy bastards.17 -
Buffer usage for simple file operation in python.
What the code "should" do, was using I think open or write a stream with a specific buffer size.
Buffer size should be specific, as it was a stream of a multiple gigabyte file over a direct interlink network connection.
Which should have speed things up tremendously, due to fewer syscalls and the machine having beefy resources for a large buffer.
So far the theory.
In practical, the devs made one very very very very very very very very stupid error.
They used dicts for configurations... With extremely bad naming.
configuration = {}
buffer_size = configuration.get("buffering", int(DEFAULT_BUFFERING))
You might immediately guess what has happened here.
DEFAULT_BUFFERING was set to true, evaluating to 1.
Yeah. Writing in 1 byte size chunks results in enormous speed deficiency, as the system is basically bombing itself with syscalls per nanoseconds.
Kinda obvious when you look at it in the raw pure form.
But I guess you can imagine how configuration actually looked....
Wild. Pretty wild. It was the main dict, hard coded, I think 200 entries plus and of course it looked like my toilet after having an spicy food evening and eating too much....
What's even worse is that none made the connection to the buffer size.
This simple and trivial thing entertained us for 2-3 weeks because *drumrolls please* none of the devs tested with large files.
So as usual there was the deployment and then "the sudden miraculous it works totally slow, must be admin / it fault" game.
At some time it landed then on my desk as pretty much everyone who had to deal with it was confused and angry, for understandable reasons (blame game).
It took me and the admin / devs then a few days to track it down, as we really started at the entirely wrong end of the problem, the network...
So much joy for such a stupid thing.18 -
Oh boy, finally something to rant about.
I got hired in a "small" company (not even 2000 people in it), then got "shipped" to a way bigger company. Basically, I work for this company (the french biggest internet / phone service provider) but in the name of my own. And this since last wednesday.
First off, I'm fucking stupid. After leaving the big company that I was in before, I swore to myself that from now on, I would work for smaller companies, mainly because I couldn't stand the inertia that big company have. You ask for something, you get it a month and a half after. The old company has about 6000 employees... This company has 98k people in it. Fuck. My. Life.
Now, to the rant: Orange (the company) decided that they had to move their office somewhere else. They set up a lot of things so that all we needed to do was to put things in boxes, to work somewhere else until next monday, then we could go to the new office on tuesday morning.
Keep in mind that I have been there for 8 days: I keep learning how they do their stuff. For example, if I need a specific docker image, I can't get it from the Docker Hub, the download will fail. However, if I hit an Orange subdomain's registry, I will get this image from a mirror. Because fuck logic.
When we join the company, they give us a Windows laptop ("yeaah we have useless but required Orange softwares that don't run on Linux" "Yeeaaah fuck you") that have a specific VPN allowing us to use the Orange network and, in theory, you can download docker images or clone orange repositories from that network.
In practice, you can simply just go fuck yourself. Why? Because whenever you want to curl, wget or pull anything (or even pip install), your connection keeps being shut down while it waits for the response's header.
The worst part? According to my (new) boss's evasive answers, the way to fix that works with glue, sticks and the power of the Force.
WHY THE FUCK DO YOU ENFORCE US A SHITTY OS FOR DEVELOPMENT, WHEN THE TOOLS YOU SHOVE IN IT WITH A FAKE SMILE DON'T EVEN WORK, AND WE HAVE TO HACK OUR WAY TO FUCKING WORK?6 -
So it's been a while since I've posted as my first few months at the new job have been amazing. But now I'm running into issues with a team member that I need to get off my chest.
So my new job is front end development in React. I'm brand new to it but I was promised time to learn on the job. On my first day the team member I'm now having a conflict with offered me help. He's the most experienced so I gladly took it.
But now several months in I've noticed his teaching style doesn't work for me. He'll go into long theoretical explanations whenever I ask a question and I get overwhelmed with info. And he gets frustrated with my inability to process all that, because he feels I waste his time. So frustrated that at one time he just walked out of work and drove home, which was really upsetting to everyone.
My direct manager and my mentor in the company (our software architect), as well as our scrum master (a consultant) are all aware of the conflict. I've been assigned another colleague to help me out. Things were going ok but he got sick so I had to turn back to the team member with the conflict for assistance. Of course frustrations arose again.
Now yesterday during our sprint planning meeting we had to say what we liked and didn't like about the past sprint. And I brought up I feel I need time for learning and that I don't know where to put that, since we don't have a task for it. I said I also felt past approaches weren't working out and that I'd like to take up the offer to go on training. I was trying to word it very neutral to not upset my colleagues, as they tried their best. But the colleague who I had previous conflicts with took it personal and accused me of not listening and that is why my code is awful. While all I've been doing is rely on his code to learn. Long story short it got very heated and direct manager and scrum master who were present had to shut it down.
I'm thinking of talking to my manager and mentor today. It really hurts when you're accused of maliciousness when all you did was try. I know my code isn't perfect. But I get no help in improving it beyond long winded explanations about theory. If I ask for practical help he says he won't write my code for me. Which isn't what I expect. When I say I followed his example he says I shouldn't copy. But two sentences later he says if I don't know what I am doing I should listen to him. It's really very confused and demotivating as a beginner, but he makes it about how I waste his time and ruin his job for him. I understand he tries his best and that it has to be hard when someone seemingly is as dumb as a bag of bricks. But my manager and mentor told me they support me as long as I continue to show improvement. So I asked for alternatives (training, time to study, or whatever I haven't thought of) and now I feel like the bad person. I'm already someone with crippling low self esteem, and I'm thrown into the deep end. It kinda sucks when someone then tells you from the sideline you can't swim and how swimming works. How about tossing me one of those floaty things and then maybe accept I need to hold on to that for a bit and my technique will need work until I can make it on my own? :(2 -
My friend who works in marketing told me the other day that he would like enter IT world to earn more. I have told him that company had opened position for junior SEO/SEM which in theory is very close to what he is doing right now. His base salary would double and there are bonuses and commissions. I have told him that I could get him that job, but what I heard back? "Nah I don't to want to do that" and started whining again about his salary...2
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dev, ~boring
This is either a shower thought or a sober weed thought, not really sure which, but I've given some serious consideration to "team composition" and "working condition" as a facet of employment, particularly in regard to how they translate into hiring decisions and team composition.
I've put together a number of teams over the years, and in almost every case I've had to abide by an assemblage of pre-defined contexts that dictated the terms of the team working arrangement:
1. a team structure dictated to me
2. a working temporality scheme dictated to me
3. a geographic region in which I was allowed to hire
4. a headcount, position tuple I was required to abide by
I've come to regard these structures as weaknesses. It's a bit like the project management triangle in which you choose 1-2 from a list of inadequate options. Sometimes this is grounded in business reality, but more often than not it's because the people surrounding the decisions thrive on risk mitigation frameworks that become trickle down failure as they impose themselves on all aspects of the business regardless of compatibility.
At the moment, I'm in another startup that I have significantly more control over and again have found my partners discussing the imposition of structure and framework around how, where, why, who and what work people do before contact with any action. My mind is screaming at me to pull the cord, as much as I hate the expression. This stems from a single thought:
"Hierarchy and structure should arise from an understanding of a problem domain"
As engineers we develop processes based on logic; it's our job, it's what we do. Logic operates on data derived from from experiments, so in the absence of the real we perform thought experiments that attempt to reveal some fundamental fact we can use to make a determination.
In this instance we can ask ourselves the question, "what works?" The question can have a number contexts: people, effort required, time, pay, need, skills, regulation, schedule. These things in isolation all have a relative importance ( a weight ), and they can relatively expose limits of mutual exclusivity (pay > budget, skills < need, schedule < (people * time/effort)). The pre-imposed frameworks in that light are just generic attempts to abstract away those concerns based on pre-existing knowledge. There's a chance they're fine, and just generally misunderstood or misapplied; there's also a chance they're insufficient in the face of change.
Fictional entities like the "A Team," comprise a group of humans whose skills are mutually compatible, and achieve synergy by random chance. Since real life doesn't work on movie/comic book logic, it's easy to dismiss the seed of possibility there, that an organic structure can naturally evolve to function beyond its basic parts due to a natural compatibility that wasn't necessarily statistically quantifiable (par-entropic).
I'm definitely not proposing that, nor do I subscribe to the 10x ninja founders are ideal theory. Moreso, this line of reasoning leads me to the thought that team composition can be grown organically based on an acceptance of a few observed truths about shipping products:
1. demand is constant
2. skills can either be bought or developed
3. the requirement for skills grows linearly
4. hierarchy limits the potential for flexibility
5. a team's technically proficiency over time should lead to a non-linear relationship relationship between headcount and growth
Given that, I can devise a heuristic, organic framework for growing a team:
- Don't impose reporting structure before it has value (you don't have to flatten a hierarchy that doesn't exist)
- crush silos before they arise
- Identify needed skills based on objectives
- base salary projections on need, not available capital
- Hire to fill skills gap, be open to training since you have to pay for it either way
- Timelines should always account for skills gap and training efforts
- Assume churn will happen based on team dynamics
- Where someone is doesn't matter so long as it's legal. Time zones are only a problem if you make them one.
- Understand that the needs of a team are relative to a given project, so cookie cutter team composition and project management won't work in software
- Accept that failure is always a risk
- operate with the assumption that teams that are skilled, empowered and motivated are more likely to succeed.
- Culture fit is a per team thing, if the team hates each other they won't work well no matter how much time and money you throw at it
Last thing isn't derived from the train of thought, just things I feel are true:
- Training and headcount is an investment that grows linearly over time, but can have exponential value. Retain people, not services.
- "you build it, you run it" will result in happier customers, faster pivoting. Don't adopt an application maintenance strategy
/rant2 -
Theory is when you know everything, but nothing works.
Practice is when everything works but no one knows why.
In my project group, theory and practice are combined: nothing works and no one knows why.1 -
I might create a coding course for people actually interested in learning how to program correctly (not Get Rich Quick Bootcamp style, not webapps, not magic Javascript incantations).
I have an idea on how to structure it but I worry it'll be too weird for most people to follow (starting from binary theory and then teaching machine code and then working upwards to C and beyond) explaining how a computer works along the way, showing the real errors with annotations explaining things, etc.
I've always wanted to teach in this format but I feel as though it's too.. idk, "useless" to most people? But I've never had a friend go through e.g. CodeAcademy and come out knowing how to actually make applications from start to finish without just hacking together random React components and hoping the frankenstein project works well enough.
The target demographic would be those either completely new to programming or just have a fundamental or web-centric preexisting knowledge, or maybe those who simply want to understand computers better.
Am I barking up a shitty tree?28 -
I think the one of the more common reason for imposter syndrome is that a lot of smart people constantly get told as children the "you're so smart/capable, you can do everything!" too much, and when you hear it enough times, it gets to you, so you think everything is just easy. And then when they start hitting roadblocks, instead of helping or explaining that it's normal for things to be hard and it's normal to fail, usually parents and teachers and whatnot tell them "Oh it's okay, don't worry about it, you're smart, you'll get it" and so they at first it works, maybe it just takes more time but they manage, but as things get harder and they still put little effort because "don't worry, you're so smart, you learn so fast/easy" and as they find out more and more things they don't umderstand or don't know they start to feel a dissonance, which builds anxiety.
And this is where I thinks it actually starts: at some points there comes a situation where they either share this anxiety with someone or someone notices their worry, and(at least from what I've seen from others) usually the response they get is something along the lines of: "Nah, you're just worrying too much, you're smarter than you think, don't be so down on yourself, you need to worry less", which, maybe I'm wrong, but I'm not sure telling someone that thinks he has a problem that he doesn't have a problem, helps their worrying.
And on one hand the amount if things they don't get/know/understand or fail at grows(cuz you can't just be good at EVERYTHING, so the more things you know about, the more things you don't understand) while mentally still being in that "Wait a minute, you're smarter than this, you should be getting this!" mindset that's been drilled into them, and so at some point the illusion shatters, and they start to think "Maybe I'm not so smart after all", and because they think they were wrong about their level, they feel like they have "oversold" themselves in the past and that makes any past accomplishments feel like lucky accidents instead: "If I'm not actually smart, the things I did manage to achieve must've been just accidental", which makes them feel like they've lied to themselves and everyone else when they "took credit for an accidents" and that their life is just a snowball of pretending.
Now, is that actually a cause or is it another one of my crazy 1AM ramblings? I don't know xD
I'm not an expert in any of this and I don't really know any psychology so hell if I know if that's how any of this works but that's just my theory of one of the reasons why. *shrug*. I've had this theory for years, but I don't know.
It at least makes sense to me, but not everything that makes sense is true soooo.
Anyways, wall of text is over.
Oh, and for anyone struggling with imposter syndrome: I just want you to know, it's okay to fail, and it's okay to not know shit, especially in the dev industry where every "insignificant" detail can have an entire rabbit hole of expertise behind it, nobody can expect to know every part of it. And it doesn't make you any less smart no matter how much you fail. Tnis shit is hard, so I hope you stay strong and I hope you succeed in whatever it is you're struggling with.
*Massive virtual hug* <31 -
I work with statistics/data analysis and web development. I study these subjects for almost a decade and now I have 4 years of practical experience.
This information is on my LinkedIn profile and from time to time tech recruiters contact me wanting to have an interview. I always accept because I find it a great way to practice interviews and talking in English, as it isn't my native language.
A remark that I always make to my colleagues wanting to start doing data analysis related work is that it may seem similar to development, but it's not. When you develop, your code work or not. It may be ugly, it may be full of security problems, but you almost always have a clear indication if things are functioning. It's possible to more or less correlate experience using a programming language with knowing how to develop.
Data science is different. You have to know what you are doing because the code will run even if you are doing something totally wrong. You have to know how to interpret the results and judge if they make sense. For this the mathematics and theory behind is as important as the programming language you use.
Ok, so I go to my first interview for a data science position. Then I discover that I will be interview by... a psychologist. A particularly old one. Yeah. Great start.
She proceeds to go through the most boring checklist of questions I ever saw. The first one? "Do you know Python?". At this point I'm questioning myself why I agreed to be interviewed. A few minutes later, a super cringy one: "Can you tell me an example of your amazing analytics skills?". I then proceed to explain what I wrote in the last two paragraphs to her. At this point is clear that she has no idea of what data science is and the company probably googled what they should expect from a candidate.
20 minutes later and the interview is over. A few days later I receive an email saying that I was not selected to continue with the recruitment process because I don't have enough experience.
In summary: an old psychologist with no idea on how data science works says I don't have experience on the subject based on a checklist that they probably google. The interview lasted less than 30 minutes.
Two weeks later another company interviews me, I gave basically the same answers and they absolutely liked what they heard. Since that day I stopped trying to understand what is expected from you on interviews.2 -
Finally got Stripe charges to work, then changed it to make subscriptions work in the Django app I was working on for Capstones. At least in theory. Works locally, but hasn’t been merged into our Production branch yet, so there could be something missing.
Still, super happy to have finally crossed it off my mental to-do list. -
So I promised a post after work last night, discussing the new factorization technique.
As before, I use a method called decon() that takes any number, like 697 for example, and first breaks it down into the respective digits and magnitudes.
697 becomes -> 600, 90, and 7.
It then factors *those* to give a decomposition matrix that looks something like the following when printed out:
offset: 3, exp: [[Decimal('2'), Decimal('3')], [Decimal('3'), Decimal('1')], [Decimal('5'), Decimal('2')]]
offset: 2, exp: [[Decimal('2'), Decimal('1')], [Decimal('3'), Decimal('2')], [Decimal('5'), Decimal('1')]]
offset: 1, exp: [[Decimal('7'), Decimal('1')]]
Each entry is a pair of numbers representing a prime base and an exponent.
Now the idea was that, in theory, at each magnitude of a product, we could actually search through the *range* of the product of these exponents.
So for offset three (600) here, we're looking at
2^3 * 3 ^ 1 * 5 ^ 2.
But actually we're searching
2^3 * 3 ^ 1 * 5 ^ 2.
2^3 * 3 ^ 1 * 5 ^ 1
2^3 * 3 ^ 1 * 5 ^ 0
2^3 * 3 ^ 0 * 5 ^ 2.
2^3 * 3 ^ 1 * 5 ^ 1
etc..
On the basis that whatever it generates may be the digits of another magnitude in one of our target product's factors.
And the first optimization or filter we can apply is to notice that assuming our factors pq=n,
and where p <= q, it will always be more efficient to search for the digits of p (because its under n^0.5 or the square root), than the larger factor q.
So by implication we can filter out any product of this exponent search that is greater than the square root of n.
Writing this code was a bit of a headache because I had to deal with potentially very large lists of bases and exponents, so I couldn't just use loops within loops.
Instead I resorted to writing a three state state machine that 'counted down' across these exponents, and it just works.
And now, in practice this doesn't immediately give us anything useful. And I had hoped this would at least give us *upperbounds* to start our search from, for any particular digit of a product's factors at a given magnitude. So the 12 digit (or pick a magnitude out of a hat) of an example product might give us an upperbound on the 2's exponent for that same digit in our lowest factor q of n.
It didn't work out that way. Sometimes there would be 'inversions', where the exponent of a factor on a magnitude of n, would be *lower* than the exponent of that factor on the same digit of q.
But when I started tearing into examples and generating test data I started to see certain patterns emerge, and immediately I found a way to not just pin down these inversions, but get *tight* bounds on the 2's exponents in the corresponding digit for our product's factor itself. It was like the complications I initially saw actually became a means to *tighten* the bounds.
For example, for one particular semiprime n=pq, this was some of the data:
n - offset: 6, exp: [[Decimal('2'), Decimal('5')], [Decimal('5'), Decimal('5')]]
q - offset: 6, exp: [[Decimal('2'), Decimal('6')], [Decimal('3'), Decimal('1')], [Decimal('5'), Decimal('5')]]
It's almost like the base 3 exponent in [n:7] gives away the presence of 3^1 in [q:6], even
though theres no subsequent presence of 3^n in [n:6] itself.
And I found this rule held each time I tested it.
Other rules, not so much, and other rules still would fail in the presence of yet other rules, almost like a giant switchboard.
I immediately realized the implications: rules had precedence, acted predictable when in isolated instances, and changed in specific instances in combination with other rules.
This was ripe for a decision tree generated through random search.
Another product n=pq, with mroe data
q(4)
offset: 4, exp: [[Decimal('2'), Decimal('4')], [Decimal('5'), Decimal('3')]]
n(4)
offset: 4, exp: [[Decimal('2'), Decimal('3')], [Decimal('3'), Decimal('2')], [Decimal('5'), Decimal('3')]]
Suggesting that a nontrivial base 3 exponent (**2 rather than **1) suggests the exponent on the 2 in the relevant
digit of [n], is one less than the same base 2 digital exponent at the same digit on [q]
And so it was clear from the get go that this approach held promise.
From there I discovered a bunch more rules and made some observations.
The bulk of the patterns, regardless of how large the product grows, should be present in the smaller bases (some bound of primes, say the first dozen), because the bulk of exponents for the factorization of any magnitude of a number, overwhelming lean heavily in the lower prime bases.
It was if the entire vulnerability was hiding in plain sight for four+ years, and we'd been approaching factorization all wrong from the beginning, by trying to factor a number, and all its digits at all its magnitudes, all at once, when like addition or multiplication, factorization could be done piecemeal if we knew the patterns to look for.7 -
This night I had a fever and seen a weird dream. So, scientists discovered that our whole perspective is wrong, and the notion that anything is but a sum of its parts is now completely irrelevant. One can’t disassemble a thing and know how it works and what it consists of. Basically you want to build a computer, you buy all the parts you need, but you can’t assemble it anymore — it just doesn’t work, and nobody knows why. Same is true for cars, industrial machines, software and pretty much anything that have something to do with engineering.
So, earth went into riots, massive layoffs occured, world economy collapsed, and the forces of what used to be USA, China and Russia joined to tackle the problem. A research was started and we found out that we now have complexity cores (!) that distribute emergence (!!) in an ephemeral way (!!!) and that is what makes things work. Theory of New Complexity (!) emerged, and all the engineers were required to go back to universities to attend lectures about how complexity works and how to make things in that new reality7 -
Never underestimate the power of a misplaced static in your Java to totally fuck you over.
I was busy with my computer science project for the semester where we have to implement a Sudoku solver without backtracking by using graph theory.
So there I was writing my data structure for the grid when for some reason all the cells were initialized with the value 8.
After a whole night of debugging I was about to start over when I realized I had made my array static.
And boom, it works. WTF!!!!!!!3 -
Today is thursday. Oh no.
At thursdays I have a 8h30-19 schedule (I have 1h30' of free time to go home and cry after I finish a class at 15h30 though) and there's this one class I DREAD. It's a 2h class at 17h and it's an exercise class. This wouldn't be so bad it I actually understood the code behind the exercises, because they don't teach us code in the theory classes (btw it's C. I hate that language because of all this). The teacher pretty much tells us "do this exercise", waits like 10' and then starts to (try to) explain what we're supposed to do. Oh my god.
The other day he was like "write "exec ( ... "text" ... )", compile and execute". It didn't work. Of course it didn't why would it? I was switching around between terminal, manual and text editor, to no avail. In the end he explained but I don't think I got it.
Every time I think about this class I die a little inside and start to become somewhat anxious to be honest. The theory is not that that hard, the practice part is what is killing me (I have test in 2w but I'm just gonna start studying earlier so I can go watch this match LoL).
Does someone know a good book (preferably online, if possible) or a good website on C? I really need to read that, that language is killing me.
Bonus: the other day I had to do a homework that was to be delivered. We had to write a program that read the program and its arguments like this:
./program_name
numArgs
arg1
arg2
etc
I wrote the code, had some bumps in the way, asked a colleague for help because we needed to have a custom function made that was to be done in the class but that I couldn't make because of the reasons above. Then it came the time to test. My VM broke (I think I'm gonna format my PC to try to fix that. Have installed some other versions of the VM but the installations fails or the machine doesn't start) so I sent it to said colleague to test. She said it did OK and so I sent the work to this website we have to send our works to.
"2 errors".
What? What happened? She said it worked just fine.
Looked at my code, couldn't see anything wrong.
Asked the same colleague for help.
Turns out I missed a space. A SPACE. I don't think I've ever felt so frustrated in my life. A presentation error in Java is a good thing, at least we know the program works fine, it's just the output that's wrongly formatted. But C? Nope, errors all around, oh my god. I'm still mad about it.
And I owe her a chocolate.1 -
Can anyone help me with this theory about microprocessor, cpu and computers in general?
( I used to love programming when during school days when it was just basic searching/sorting and oop. Even in college , when it advanced to language details , compilers and data structures, i was fine. But subjects like coa and microprocessors, which kind of explains the working of hardware behind the brain that is a computer is so difficult to understand for me 😭😭😭)
How a computer works? All i knew was that when a bulb gets connected to a battery via wires, some metal inside it starts glowing and we see light. No magics involved till now.
Then came the von Neumann architecture which says a computer consists of 4 things : i/o devices, system bus ,memory and cpu. I/0 and memory interact with system bus, which is controlled by cpu . Thus cpu controls everything and that's how computer works.
Wait, what?
Let's take an easy example of calc. i pressed 1+2= on keyboard, it showed me '1+2=' and then '3'. How the hell that hapenned ?
Then some video told me this : every key in your keyboard is connected to a multiplexer which gives a special "code" to the processer regarding the key press.
The "control unit" of cpu commands the ram to store every character until '=' is pressed (which is a kind of interrupt telling the cpu to start processing) . RAM is simply a bunch of storage circuits (which can store some 1s) along with another bunch of circuits which can retrieve these data.
Up till now, the control unit knows that memory has (for eg):
Value 1 stored as 0001 at some address 34A
Value + stored as 11001101 at some address 34B
Value 2 stored as 0010 at some Address 23B
On recieving code for '=' press, the "control unit" commands the "alu" unit of cpu to fectch data from memory , understand it and calculate the result(i e the "fetch, decode and execute" cycle)
Alu fetches the "codes" from the memory, which translates to ADD 34A,23B i.e add the data stored at addresses 34a , 23b. The alu retrieves values present at given addresses, passes them through its adder circuit and puts the result at some new address 21H.
The control unit then fetches this result from new address and via, system busses, sends this new value to display's memory loaded at some memory port 4044.
The display picks it up and instantly shows it.
My problems:
1. Is this all correct? Does this only happens?
2. Please expand this more.
How is this system bus, alu, cpu , working?
What are the registers, accumulators , flip flops in the memory?
What are the machine cycles?
What are instructions cycles , opcodes, instruction codes ?
Where does assembly language comes in?
How does cpu manipulates memory?
This data bus , control bus, what are they?
I have come across so many weird words i dont understand dma, interrupts , memory mapped i/o devices, etc. Somebody please explain.
Ps : am learning about the fucking 8085 microprocessor in class and i can't even relate to basic computer architecture. I had flunked the coa paper which i now realise why, coz its so confusing. :'''(14 -
I prefer starting from theory and then proceed with practicing. For example, to learn haskell and deeply understand it, I started by taking a course in category theory and I already have a degree in computer science and then start writing actual code. The same with JS. I started with theory for JIT compilers and studied how V8 works, how it utilizes event loops and how they are implemented in the kernel. Then I started experimenting with code and demos. It's a success path for me, that has worked every time with every new technology.2
-
From the last 3 years, i have accumulated interest and experience in android dev. Not sure about the future, but that's probably where i will be.
But this fact is moot to our 50 year old grumpy professors teaching 1000 year old rusted computer syllabus, who rejected my idea of a video streaming app as major project, simply because i projected it as a social media app, and "everyone is making a social media app, its such an old topic". yeah right sir, its younger than your daughter that fucks in the lobby
Now we are doing a project on file conversions website, a project suggested by my team member and my good friend. its such a shitty topic, there is no resources available, even the research papers are bad , every search points to a shitty site, and i don't know shit about web dev.
Technically i am the team leader, but my team mate won't let me make the project as android native app, because "Brooo, i am going to make a react app that would be completely offline, completely client side, full secure and shitt small" and sometimes "Bro its my idea" .
Well, 1. the whole point of client side is stupid because the 18 mb jsfile isn't going to get downloaded first in the client's cache(or whatever the process is, idk). The top stack overflow answers i saw told me to buy an ec2 instance and run liberoffice commands on it for every request, and that's SERVER SIDE. even if we could, i am sure its going to be bigger than what i would have made in kotlin.
2. what am i supposed to do? look at you coding while make all the ppts and research paper? you are going to use undocumented libs that "just works" , and i am suppose to curate the theory behind this, looking at all the researches of the world?well i guess okay that's a light job since THERE AREN'T ANY.
And we are targetting all types of conversions, nice. from what i know, handbrake.fr: video conversion s/w = 16 mb. photoshop: image conversion s/w=1gb and ms word: doc to pdf/other formats= 500mb.
Plus all those proprietary and undocumented formats, ugh. Thank you ugly ass companies.
Internet is great but web dev has become a whole lot mess. "I am going to build a software that is going to run in your system only using your device's processor" is a desktop/mobile app, not a website -
The job description of my internship:
You must be able to understand the complexities of receiving a unit test that you are told needs only mock data in the test database, but has never worked since it was written by a contractor a year ago. No one knows how the unit test works and requires testing a complex algorithm involving graph theory that you have not learned about yet. The task starts at 1 complexity and turns into a 13. -
Writes regex pattern at regex101.com: match
Writes same pattern on site: No matches
Trying to fetch text from foreign site to detect when the text changes. -
Greg Wilson, whom you might know due to “Making Software: What Really Works, and Why We Believe It” and the “It Will Never Work in Theory” website, is volunteering with Rainbow Railroad, a non-profit that helps LGBTQ+ refugees resettle in safe(r) countries. Greg’s team is sponsoring a lesbian woman from Uganda to come to Canada, and trying to raise $16,500 to help with her first-year costs.
If you would like to help her, please donate on
https://donate.rainbowrailroad.org/...1 -
People, help me out.
(first some abstract thoughts)
I am a final year undergrad yet to take steps in the world and i am trying to figure out what to do with my time, what my end goal and next steps should be.
As of now I think my end goal is "relaxation , peace and happiness of me and my loved ones", and to reach there , i need money.
My younger self chose engineering for a particular reason(that i vaguely remember) and weather it was a right or wrong/illogical decision, i guess i am stuck with it and have to use this only to reach my end goal.
Maybe i am regretting this and want to change. Maybe i am just a lazy ass who is bad in his assigned role of an engineer and is running towards glitter in other fields, whatever it is , i am not going against the decision of my past and accepting my identity as an engineer.
I believe once i am able to achieve my goal( that am still not sure about but overall is a good one from general perspective), i guess i will be satisfied
------------------------------------------------
(enough with the deep stuff)
I want to learn how to "learn" . like i am always conflicted about what to do next once the tutor leaves my hand.
for eg, let's say i goto a site abc.
1. They got 1 course each for android , web dev and ai. I choose the web dev course and give my hardworking attention to it
( At this point my choice is usually based on the fact that <A> i should not be stupid to buy all 3 course even if i have money/desire to buy all of em because riding 2 horses is only going to break my ass and <B> some pseudo stats like whichever got more opportunity, which i "like", etc(Point B is usually useless in the long run i guess) )
2. From what i have experienced, these courses usually have a particular list of topic that they cover and apply them to 1 or 2 projects. For eg, say that my web dev course taught me 20 something concepts of basic html/css/js/server and the instructor applied it to blog website
BUT WHAT IS NEXT ?
2.1.
>> Should I make more projects using only those particular list of concepts?
I usually have a ton of ideas that i want to implement now that i know how to build a blog site.
say i got a similar idea to make say url shortner. I start with full enthusiasm but in the middle way there is some new thing that i don't know and when i search the internet, i realize that there are 5 ways to implement such concept, making me wander off towards a whole list of concepts that were not covered in my original 20 concept course. This makes the choice 2. 2
2.2
>> Should I just leave everything , go to docs and start learning concepts from the scratch ??
Usually when i start a project, i soon realize that the original 20 concepts were just the tip of iceberg and there are a ton of things one should know, like how os works, how a particular component interacts with another, how the language is working, how the compiler is executing, etc .
At that point i feel like tearing all my notes away, and learning every associated thing from the scratch. No matter how much my project suffers, i want to know how the things are working from the bottom , like how the requests are being mad, how the routes are working, etc which might not even be relevent for the project.
Why i want to follow approach 2? because of the Goal from abstract thoughts. in theory, having deep knowledge is going to clear my interview thereby getting me a good job.
I will get good money, make projects faster and that will be a happily ever after story.
But in practical this approach is bringing me losses and confusion. every layer of a particular thing i uncover, turns out there is another layer below that. The learning never stops. Plus my original project remained incomplete.
What is your opinon, how do you figure out what to do next?8 -
I have been an armchair neuroscientist in my interests. I am fascinated by the brain, how we believe it works, how it really works, and what different research has shown. I have found books written by real neuroscientists that talk about how the brain works and what the research they have shows about intelligence. I am also fascinated by the idea of rewiring your brain. I just found another neuroscience book that has research from some neuroscientists that have challenged the established belief that adult brains have little to no neuroplasticity. This is the ability for the brain to rewire itself to accomplish new tasks or repurpose different parts of the brain. I didn't know this was a limiting factor in the theory of neuroscience. The book also includes information about how Buddhists and neuroscientists are working together to unlock more knowledge about neuroplasticity. The traditional neursoscience belief is that the brain affects the mind solely. However Buddhists have long believed that the mind can affect the brain physically. I am just starting to read this book, but so far the experiments that have been performed seem fascinating. It also has not gotten to the part about the Buddhism influence on the research yet. So far I have just read about how scientists have shown that plasticity can be shown to occur with normal everyday tasks. I don't know where this will lead, but its really cool to read about.
Okay, great, so what?
The why was I looking for this is interesting. I have been looking for some time ideas on how to improve my thinking. I had the idea that I could help myself think better by training my brain with mental exercises. I want to create a program that runs on the computer or phone that one could use with visual and audible cues to play mental games. These games would be designed to make one better at solving puzzles, remember things better, and more. If these exercises could be made in such a way that they were fun to do then we could use our own addictions to improve ourselves. The research I had before frustrated me because they always said you couldn't make yourself smarter. Maybe you cannot increase your mental capacity (not sure if that is true if we can grow neurons, also mentioned in the book), but reorganizing what you have might be possible. Maybe if there is a finite capacity to the brain that reorganizing might cause you to drool. I don't know, but if I could create a puzzle game with the purpose of helping me visualize algorithms, I would find that useful. Also, helping me remember short strings of data would be helpful as well. It seems like I have trouble when it is more than 7 numbers (ten?). Which is also why phone numbers are that long. To make them easier to remember.
I just don't know where this will lead. It might be a wild goose chase. But I think I will learn something about my mind and myself in the process. It also sounds like a great deal of fun.3 -
Hello guys, i need some advice:
Our school is having a "auto-management" (idk how to translate) period, it lasts 3 or 4 days just before christmas vacation, and in those days students get to organize courses about pretty much everything to teach stuff to other students (exept stuff like video games cuz the principal is closed-minded), some friends asked me to make a course about programming in c# because they are interested, i thought it was cool so i said OK.
Now i'm thinking how to structure it, it's going to be 2 "lessons" of 2 hours each, and it's open to everyone in the school.
I don't want to do a full blown course explaining everything, i just want to give them a kick start and point them to the right direction, I thought about explaining some "theory" in the first lesson, I'm assuming almost everyone that will come never did programming stuff, so i'm thinking of explaining stuff like how a computer works, why you need a compiler, etc.. maybe based on the introduction from learncpp.com without getting to much into the details and then explaining how c# works and its grammar.
Then in the second lesson i'll try to code togheter some stuff (We'll have just one pc attached to a projector).
So, how would you do this ? I mean i never tried explaining programming to someone else and i'm self-taught i looked at the guide on msdn but it starts directly by giving you an hello world, should i follow it ? I fear i'd get too thecnical and they wouldn't understand me, do you know some good guide i can use as a reference ?
ps: there's going to be max 30 people1
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