You're probably quite right. I guess that, as someone who has spent most of their teenage and adult life absorbing knowledge at a very rapid rate, it's both new and slightly disconcerting to know that I simply have less time to _learn_.
Indeed. Given that we are not immortal and have finite time, we have to make sacrifices somewhere. I have a friend who has opted to sacrifice his health, social life and romantic life for his intellectual and career ambitions. It's always an option but I don't like what I see.