Hehe, I have a son like that too, he'll be 13 this year and I'm happy to say there has been a small increase in intellectual curiosity in the last six months or so. OTOH I also have a daughter who'll soon be 10 and she has the
opposite problem, she's curious about
everything (for instance she self-studies Japanese because she loves robots and sushi and wants to go to Japan and just the other day she learned the location of all 50 US states, just because, and we're not even Americans) but it also means she never really dives deeply into anything. So intellectual curiosity is good but it's not enough. These days I try to teach her grit, so she will stick to something even when it becomes a bit boring...
Anyway, with my son I've found that when I include him and let him help with things I do around the house, like carpentering, he's much more interested than if I try something more "artificial" for lack of a better word. It's as he wants to do "real" things, because nothing beats a computer game when it comes to not being real.