Counterpoint to this: a lot of the programmers I admire all have an uncanny ability to just sit and work for long periods of time. Like, sit down and hardly move for 10 straight hours. They achieve a huge amount in that time - much more in a single 10 hour stretch than they would in 10x1 hour sessions.

And that applies to other things they do: playing video games, reading a book...when they do something they go 'all in'.

I feel like this level of focus is much more of a superpower than small amounts every day (although that too is powerful, and both approaches are infinitely better than what most of us do, which is very little)