I don't have 'weekends'. Part of 'success' seems to me doing what you love and what you want to do, and if you're doing that, you want to do it every day, and never 'retire'. Then work and play aren't clearly separate. I don't really have 'hobbies', or I don't understand the idea, at least - I'm kind of equally serious (and unserious[0]) about everything I do. (e.g. for me, whether it's programming, making music, making art, learning some new subject or skill etc) I've noticed from all over the place that 'side projects' almost normally become peoples' main thing, whether in science, programming, art etc. Whatever they're working on for fun and curiosity.
(I read recently about how the Institute for Advanced Studies produced almost nothing, because although it sounded great, to pay geniuses to spend as long as they wanted on anything, the effect was that there were 'no side projects', and making everything 'the main thing' seems to somehow stultify it. Maybe we're natural procrastinators, and the AIS model was defeated by that.)
[0] I mean, in the sense of being alert for the comical, unexpected side of things. A playful sense of joy. Most of my favourite writers (e.g. Chesterton, Russell, Kierkegaard) have a great sense of humour, university lecturers too. I got into following chess tournament commentary online because of some commentators who were very funny. (e.g. Mig Greengard, Ben Finegold, Jan Gustafsson). I've noticed almost all great scientists, mathematicians I read/hear have a strong sense of humour, in their personalities if not in all their works. It's not separate from their curiosity and serious intellectual concerns.
(I read recently about how the Institute for Advanced Studies produced almost nothing, because although it sounded great, to pay geniuses to spend as long as they wanted on anything, the effect was that there were 'no side projects', and making everything 'the main thing' seems to somehow stultify it. Maybe we're natural procrastinators, and the AIS model was defeated by that.)
[0] I mean, in the sense of being alert for the comical, unexpected side of things. A playful sense of joy. Most of my favourite writers (e.g. Chesterton, Russell, Kierkegaard) have a great sense of humour, university lecturers too. I got into following chess tournament commentary online because of some commentators who were very funny. (e.g. Mig Greengard, Ben Finegold, Jan Gustafsson). I've noticed almost all great scientists, mathematicians I read/hear have a strong sense of humour, in their personalities if not in all their works. It's not separate from their curiosity and serious intellectual concerns.