Mistakenly letting a great candidate go doesn’t cost a cool company a thing: they have plenty of spare great candidates, so letting a few spill on the ground is a much better mistake to make than hiring a bad candidate. Therefore, cool companies’ hiring processes are sometimes rather draconian. Great people get rejected frequently, and often with no idea why. It could happen to you. These companies often can get people who really are almost exactly like what their crazy job listing is asking for