We were proud of ourselves for beating Portal at all the first time, and that took us a few hours. It was pretty revolutionary. Now someone's done it in under 14 minutes. Thanks for making us feel inadequate!
Even GLaDOS can't catch up. To be fair, we don't even really understand what's going on in everything past the three minute mark here. And apparently this is the less exploity versino of a Portal speedrun: inbounds.
On the other hand, the same user, Transgenic86, has another speedrun uploaded (called "Portal done pro") that goes out of bounds. Yes, it's even crazier.
How fast can you beat Portal? Tell us in the comments or on Twitter.