Very impressive to see Chuck Moore still going at it at the age of 87. I hope at that age I'm able to handle the minutiae of programming!

Totally! At 87 that's gutsy! My very first paid programming work was in Forth on a 6502 platform in the '60s, building a networked accounting and flow management program for a water company, but I'm now 81 and very glad to be retired.

My dad is in his mid 60's, and I'm pretty convinced he's going to be like that. He's not a software engineer, mostly a mechanical engineer, but it's pretty rare that I talk to him and he's not hacking on something mechanical.

I'm not talking just woodshop stuff; he is actually doing math and calculations for little things that he's building. He is an engineer by blood that happened to make a career out of it.