Going through their application... I think their Challenge should be to really revamp it. I feel like I have to click Save after ever field or I'll be redirected to some random page when I click "Next."
MassChallenge was a lifetime experience for me! I'm not in an IT space, so I'm not sure that YCombinator could be a good fit for me, but MassChallenge was a good fit indeed.
I assume this is meant as a joke, but just in case: every cycle we take about the same percentage of applications. It's always between 2.5 and 3.5%.
(This is not a deliberate plan. It has just always worked out that way.)