Why Can't I Have This Kind of Certainty?

First, the credits: This comic was borrowed from XKCD, "A Webcomic of Romance, Sarcasm, Math, and Language," written and illustrated (or is it the other way around?) by some absurdist genius named Randall Munroe.

XKCD is my new obsession (along with I Can Has Cheezburger?). Kudos to MaryKate for introducing me to the site. And if you don't get how a "Snapple" is an apple infused with tin, it probably won't appeal to you quite as much as it does to me.

And now, without further ado, I give you "Graduation":

(If you can't see it well, click the picture to go to the site. You'll be able to read it properly there. )