YC funds founders, not ideas: the filter that actually decides your slot
Roughly one in a hundred applicants gets in, and most accepted founders are still "just an idea" at funding. YC says it backs people first, yet applicants keep mistaking the idea for the review. This Fall 2026 playbook breaks down the partner-weighted axes — clarity, traction, founder-market fit — and the seven application steps that decide your slot, from the 50-character company description to the founder video. Position against how partners actually read, not how you wish they would.