I'm mid 30s, and if anything I can keep more of the code in my head than when i was in my 20s. My abstractions got better, and I've seen lots of stuff before,

I'm mid 30s, and if anything I can keep more of the code in my head than when i was in my 20s. My abstractions got better, and I've seen lots of stuff before, I think this has had the effect of compressing everything. I think of all the edge cases and pitfalls that I wouldn't have in my 20s. I have an easier time reading and understanding documentation, using libraries, reading and understanding other people's code. I think I'm also much more sympathetic to the poor sod who wrote this broken code under a time crunch 5 years ago.