[tessr]

The point is not at all that PennApps is more popular than Justin Bieber. The point is that, for a certain demographic, hackathons are getting crazy popular.

There are a lot of things that are scaled here. For one thing, this is about perception and expectation--who would think that a hackathon would sell out in less than an hour? Everyone expects Justin Bieber to do that, but a hackathon?!