Oh, that's it: he's actually funny

Two profound questions have been keeping me awake at night lately: 1) why has Seth Rogan lost all that weight?, and 2) why is Seth Rogan successful? Both questions have been answered by this video of him performing stand-up at the age of 13 in Vancouver. Answer 1: that's actually his natural weight, and 2) actually, he's a pretty funny writer.

At any rate, he was when he was 13.