How to get YC (or anyone else) to fund you
Disclaimer: I don't work for YC; I don't speak for them. I just wanted to write this so folks here can understand why some people get funded and others don't.
I applied to YC four times before getting in. Nothing in my background is particularly remarkable. I worked in tech, went to decent schools, no medals or famous mentors. What changed on the fourth try was that we had grown from $10k to $100k ARR in two months and signed a large customer, in an industry that does not move that fast.
That is the whole formula as far as I can tell: Evidence of exceptional ability. Everything else is downstream of it.
Look at who actually gets funded and it tracks. The new grads who get a check on an idea that is a few days old are usually graduating from an Ivy while sitting first chair in a national orchestra, or they spent their undergrad doing real research alongside a Nobel laureate. I know these types because they were in my YC section. The idea did not get them funded (many ended up pivoting lol). The proof that they can do hard things at a level almost nobody reaches got them funded.
The other end of the distribution follows the same pattern. The team that gets in on their seventh application is not there because attempt seven had a better idea. They finally hit traction on something that had been pressure tested for years and now genuinely needs capital to move faster. The traction is the evidence.
To be clear, the idea does matter. But it is a filter, not the thing most rejected applicants are actually failing. If you are early and getting rejected, the instinct is to assume the idea was the problem and to go looking for a better one. Don't do that. Just keep working on the business, and eventually the business itself will be the evidence.
Just ask yourself what you can point to that makes it obvious you operate at a different level than the average applicant. If the honest answer is nothing yet, that is the actual work in front of you.
Go build the evidence for your exceptional ability and the funding will follow.