In case you needed it, here’s another reason RPGs are cool: because they make you want to learn everything. RPGs (and worldbuilding, and working to make rules model the world) have made me curious about how pretty much everything works, from the swarming of insects to the manufacture of swords. It’s rare that I learn a new fact and don’t, somewhere in the back of my head, have the thought “this will be good to know for a game, someday”.