Spider Robinson recently published an article in the Globe and Mail after attending the SF conference Torcon 3. His comments have received a lot of commentary among the various SF blogs and lists. I can see why:
"Incredibly, young people no longer find the real future exciting. They no longer find science admirable. They no longer instinctively lust to go to space."
While I'm unsure why youth have lost their yurn for space, I suspect it may have something to do with the instantaneous nature of the modern cool market. There's no room for arbitrage. Why dream when everything in the world is only a key-stroke away?
As Timothy Taylor notes, "cool is over." Just like SF.