About a week ago I bought a server rack case from some guy online for 40 bucks. When it arrived it was in the worst state I had ever seen a case. Even if I tried I wouldn't have abused a case like that. Rust... everywhere...

I stripped it down and removed all the rust I could. Then I painted it and this is the end result. Pretty cool if I say so myself :)

POSTMORTEM

"4096 bit ~ 96 hours is what he said.

IDK why, but when he took the challenge, he posted that it'd take 36 hours"

As @cbsa wrote, and nitwhiz wrote "but the statement was that op's i3 did it in 11 hours. So there must be a result already, which can be verified?"

I added time because I was in the middle of a port involving ArbFloat so I could get arbitrary precision. I had a crude desmos graph doing projections on what I'd already factored in order to get an idea of how long it'd take to do larger
bit lengths

@p100sch speculated on the walked back time, and overstating the rig capabilities. Instead I spent a lot of time trying to get it 'just-so'.
Worse, because I had to resort to "Decimal" in python (and am currently experimenting with the same in Julia), both of which are immutable types, the GC was taking > 25% of the cpu time.

Performancewise, the numbers I cited in the actual thread, as of this time:
largest product factored was 32bit, 1855526741 * 2163967087, took 1116.111s in python.
Julia build used a slightly different method, & managed to factor a 27 bit number, 103147223 * 88789957 in 20.9s,
but this wasn't typical.

What surprised me was the variability. One bit length could take 100s or a couple thousand seconds even, and a product that was 1-2 bits longer could return a result in under a minute, sometimes in seconds.

This started cropping up, ironically, right after I posted the thread, whats a man to do?

So I started trying a bunch of things, some of which worked. Shameless as I am, I accepted the challenge. Things weren't perfect but it was going well enough. At that point I hadn't slept in 30~ hours so when I thought I had it I let it run and went to bed. 5 AM comes, I check the program. Still calculating, and way overshot. Fuuuuuuccc...
So here we are now and it's say to safe the worlds not gonna burn if I explain it seeing as it doesn't work, or at least only some of the time.

Others people, much smarter than me, mentioned it may be a means of finding more secure pairs, and maybe so, I'm not familiar enough to know.

For everyone that followed, commented, those who contributed, even the doubters who kept a sanity check on this without whom this would have been an even bigger embarassement, and the people with their pins and tactical dots, thanks.

So here it is.
A few assumptions first.
Assuming p = the product,
a = some prime,
b = another prime,
and r = a/b (where a is smaller than b)
w = 1/sqrt(p)
(also experimented with w = 1/sqrt(p)*2 but I kept overshooting my a very small margin)

x = a/p
y = b/p

1. for every two numbers, there is a ratio (r) that you can search for among the decimals, starting at 1.0, counting down. You can use this to find the original factors e.x. p*r=n, p/n=m (assuming the product has only two factors), instead of having to do a sieve.

2. You don't need the first number you find to be the precise value of a factor (we're doing floating point math), a large subset of decimal values for the value of a or b will naturally 'fall' into the value of a (or b) + some fractional number, which is lost. Some of you will object, "But if thats wrong, your result will be wrong!" but hear me out.

3. You round for the first factor 'found', and from there, you take the result and do p/a to get b. If 'a' is actually a factor of p, then mod(b, 1) == 0, and then naturally, a*b SHOULD equal p.
If not, you throw out both numbers, rinse and repeat.

Now I knew this this could be faster. Realized the finer the representation, the less important the fractional digits further right in the number were, it was just a matter of how much precision I could AFFORD to lose and still get an accurate result for r*p=a.

Fast forward, lot of experimentation, was hitting a lot of worst case time complexities, where the most significant digits had a bunch of zeroes in front of them so starting at 1.0 was a no go in many situations. Started looking and realized
I didn't NEED the ratio of a/b, I just needed the ratio of a to p.

Intuitively it made sense, but starting at 1.0 was blowing up the calculation time, and this made it so much worse.

I realized if I could start at r=1/sqrt(p) instead, and that because of certain properties, the fractional result of this, r, would ALWAYS be 1. close to one of the factors fractional value of n/p, and 2. it looked like it was guaranteed that r=1/sqrt(p) would ALWAYS be less than at least one of the primes, putting a bound on worst case.

The final result in executable pseudo code (python lol) looks something like the above variables plus

while w >= 0.0:
if (p / round(w*p)) % 1 == 0:
x = round(w*p)
y = p / round(w*p)
if x*y == p:
print("factors found!")
print(x)
print(y)
break
w = w + i

Still working but if anyone sees obvious problems I'd LOVE to hear about it.

My GPU blocks the airflow from the lower front intake fan to the CPU, so I wanted to have a fan in the 5.25" drive bay directly targeting the CPU.

While that bay fits a 140mm fan nicely, there was no mounting point. I ended up making four fan struts out of the metal covers for the 5.25" inserts, the ones that you wiggle out. Drilled holes into the case, a bit of foam above and below the fan to seal the larger gaps, and done.

The trick is ofc that the 5.25" case covers are meshed and hence act both as air intake and dust filter. The CPU runs a few K cooler under load.

Jonny Ive---It's not great design when the first thing most of your iPhone users have to do is mod your product with a case just to use it for its intended purpose.

Especially as the primary purpose of your design seems to be to focus on the visual aesthetic---which is voided by said case.

So I came from the Portal modding scene. And I know most other ones who did similar stuff.
Now there was a cool looking upcoming free mod and I somehow came in touch with the lead Dev. Now somehow I managed to get into the developer team and me and my girlfriend we're part of it. We got a level name and should start mapping it (TL;DR, we never finished one because we didn't know what to do).

I actually made a website for the mod. But sometime later we both left the team because the lead Dev (12 yo btw) was "hiring" (working for passion not money btw, that's fine in this case) everyone he got in touch with. They had no team structure just a huge list of people and a long story script. I'd guess the mod won't ever be done, although it has made it through steam greenlight (R.I.P greenlight). Just because they're not working on a team.

Ok... so I have a unique question/opportunity. I can't give all the details but here's the jist:

3yrs ago I was hired to consult a now prominent(still decently well known then) web-based company with many thousands of users, dealing with a lot of money and leveraging a social environment. They had several issues but initially they really needed me to find/train chat mods.

I did not take the offer for monetary reasons, like all consulting I've done, I had additional reason and/or fondness to fix the issues. In this case it was an interesting challenge and I knew several customers and some support staff so it'd be worthwhile.

They (without request) reduced their typical 2mo probationary period to 2wk for me. With less than a day left of that period, I was 'hacked' via a pushed telegram update, on the account they made me create for work purposes (they had control of the phone number not me).

During this 'hack' one of the 2, currently active, culprits sent a message to his tg account from the 'hacked' one and quickly deleted the entire convo. The other pretended (poorly) to be me in the chat with the mods in training (at least a few directly witnessed this and provided commentary).

Suddenly, I was fired without any rationale or even a direct, non-culprit, saying anything to me.

The 'hack' also included some very legit, and very ignorantly used, Ukrainian malware.

This 'hack' was only to a 2nd gen lenovo yoga I got due to being a certified refurbisher... just used for small bs like this chat mod/etc job. I even opened up my network, made honey pots, etc., waiting for something more interesting... nope not even an attempt at the static ip.

I started a screen recording program shortly after this crap started (unfortunately after the message sent be 'me' to the dude who actually sent it happened... so i still dont know the contents).

I figured I'd wait it out until i was bored enough or the lead culprit was at a pinnacle to fall from...

The evidence is overwhelming. This moron had no clue what he was doing (rich af by birth type)... as this malware literally created an unhidden log file, including his info down to the MAC id of his MacBook... on my desktop in real time (no, not joking... that stupid)

Here's my quandary... Due to the somewhat adjacent nature of part of our soon to be public start-up... as i dont want it to turn into some coat tail for our tech to ride on for popularity... it's now or never.

Currently im thinking, aside from any revenge-esq scheme, it'd be somewhat socially irresponsible to not out him to his fellow investors and/or the organisation that is growing with him as one of few at the forefront... ironically all about trust/safety/verification of admins in the industry.

I tried to reach out to him and request a call... he's still just as immature. Spent hours essentially spamming me while claiming it wasnt him but hed help me find whoever it was... and several other failed attempts to know what i had. When i confirmed he wasnt going to attempt a call, i informed him id likey mute him because i don't have time for back and forth bs. True to form he deleted the chat (i recorded it but its of no value).

So... any thoughts?