I think in addition to this, people's engagement in hobbies often allows them the mental plasticity to return to difficult problems with a solution. Improving o

I think in addition to this, people's engagement in hobbies often allows them the mental plasticity to return to difficult problems with a solution. Improving on something that doesn't necessarily benefit society directly, but which one finds personally fulfilling, tends to make people more energised when it comes to those society-building concerns (whether as activism, community engagement, or scientific advancement as previously mentioned.)