With so much technology available at hand, is there ever a reason to not know anything anymore?
I mean, no matter how large or random your topic is, some sort of information on it can be found with a simple Google Search. Who's to say if your esoteric questions always find their answer, but the era of living without access to data and facts is over. It's all out there for us, waiting to be discovered at the speed of a thought.
But remembering everything you learned, though, that is something I'm still trying to figure out.