What I've been very interested in lately is whether there's a way for us to enable local food production (local meaning on the individual/family scale) via some technological or business innovation. Maybe something along the lines of automated remote farming which would factor in the lack of local space to farm + time limitations.
Something that concerns me personally is the globalistic nature of the food supply chain and just from a risk management perspective it would be great to push it into a more localized state. But I don't think a world where everybody moves to homesteading is realistic, quite the opposite.
Just superficial pondering. If there's some nice initiatives / startups / other working on this would be keen to learn more about them.
e: and we're working on this :)