No, that's based off https://2.bp.blogspot.com/-VCfpzLhSSxM/V0tbZAPvRTI/AAAAAAAAA... by venture capitalist Christoph Janz, plus a guesstimate (based on conversations with many YC applicants, both successful and not, and on the fundraising track records of YC cos) that the YC admission bar is about equal to the bar for a large seed round.