a large part of what investors invest in is the team. YC tends to do quite a few second investments, because they've already decided that they believe in the team. i would peg this investment as one of those -- that the idea was much less important in the decision than immad and jude forming the team was.
Because YC isn't obliged to force teams to change the project ideas that they bring to the table based on any of the hundreds of applications they didn't accept?