"without evidence or data" It seems worth noting that although this essay doesn't have a lot of the way in evidence/data, it is likely informed by PG's extensi

"without evidence or data" It seems worth noting that although this essay doesn't have a lot of the way in evidence/data, it is likely informed by PG's extensive experience as a startup investor. I would guess that YC has a proprietary dataset of the startups they've funded that they use to test hypotheses etc.