My theory has always been that we think of time faster because we can remember more years in a more compressed period of time, making the present seem comparatively smaller. Does that make sense?
In other words, when I remember being 16, I do it in an instant. When I remember all my high school years, I can't remember the sensation of time along with that--the time wasn't felt. And in memories, time doesn't exist. And so this present year seems a smaller and smaller fraction of a growing whole.
And those numbers are definitely not concrete, and are definitely influenced by personal decisions.
EDIT: Just read the article. Ha! Basically exactly what I said, written into a formula. Funny.
Super loose, though, no studying... Purely conceptual. DT, don't sweat it--my years still seem really slow. Another thing hinted at in the article (and derived from common sense) is that time perception is relative to brain activity. Think strongly, actively, and never stop learning, and time will just keep going slow. I feel like 2011 is taking forever to pass, and it helps that I'm learning 3 languages aside from being in University, learning different kinds of dance, etc. LIVE! And then time will accompany you.
And maybe, just maybe, if you life well enough, you won't mind when death comes anyways.