When I was young, in my late teens and even through to my late 20s, I could code for the majority of my waking hours. Now I'm old, with teenage kids, and a mor

When I was young, in my late teens and even through to my late 20s, I could code for the majority of my waking hours. Now I'm old, with teenage kids, and a more managerial (but still self-employed) kind of job... well let's just say after spending most of the day in MS Word, I bailed from the coworking space at 3pm... and fell asleep on my couch at 4. If I find myself back in my happy place (coding) then I am still able to code for much longer hours, but I definitely notice my fatigue levels rising, and this is definitely reflected in the quality of my work. I suspect the vast majority of working people are not doing jobs which are as fulfilling as coding is to me, and many probably wish they could go home and crash on the couch at 4pm. Shorter working hours will benefit them. Given the rising levels of inequality, it's also an easy form of redistribution, and I was a little disappointed that Carmack didn't address that, but admittedly it wasn't really the thrust of his post.