Why scifi is all I read any more

In the words of Kurt Vonnegut's Elliot Rosewater, addressing a convention of scifi writers:
"I love you sons of bitches, you're all I read any more. You're the only ones who'll talk about the really terrific changes going on. the only ones crazy enough to know that life is a space vaoyage. and not a short one, either, but one that'll last for billions of years. You're the only ones with guts enough to really care about the future,who really notice what machines do to us what wars do to us, what cities do to us, what big, simple ideas do to us, what tremendous missunderstands, mistakes, accidents and catastrophies do to us. You're the only ones zany enough to agonise over time and distance without limit, over mysteries that will never die, over the fact that we are right now determining whether the space voyage for the next billion years or so is going to be to Heaven or to Hell."