I just had a thought about what may set good and not so good developers apart...

I'm now 30 and for the past 3-4 years, I haven't done any more big personal projects. But at work, going on and on about good coding practices and making sure things are done right, more time spent upfront on design than coding, etc. And doing the greenfield stuff.

And I feel like maybe there biggest difference is that I started to code as a kid... And making those mistakes early and learning all the different things have a compounding effect.

So if we all become slower and even stagnant at 30 in picking stuff up... I'm always going to have this advantage/lead (skill/experience gap)

Or maybe in just rambling and getting nowhere....