the first time I watched this... I was amazed at the level of graphics in just a simple flash animation... it's defenitely up there with most very well drawn animations.
and then there's the story that you portrayed. at first I thought it was just the kid playing an old joke I heard about time travelling... but after watching it twice, I see what you did subtly throughout the entire flash...
which is why, to anyone who is watching this now/going to, make SURE you rewind it with the bar on the bottom (or close and reopen it) and watch is at least a 2nd time. the second time you watch it, it just takes on an ENTIRELY different meaning that is both deep and powerful.
very well done, sir, very well done.
ps: couldn't help but notice the soundtrack you used... very fitting in about every way I can think of. while normally I cringe a little when I realize someone just reused an old music track from something else... this time it just felt so in line with this I barely gave it a 2nd thought.