Getting rejected by YC is not failure. YC has specific things they're looking for, and only so many resources to go around; getting rejected means that (a) you

Getting rejected by YC is not failure. YC has specific things they're looking for, and only so many resources to go around; getting rejected means that (a) you didn't match what they were looking for or (b) you didn't seem as promising as some of the other people who applied. A friend of mine is a marathon runner who usually comes in under 3 hours. It turns out that there are enough people in that category that the Boston Marathon offers slots by lottery, and this year he wasn't one of them. Not getting a slot in the Boston Marathon doesn't mean you can't finish the race; it just means you have to find a different place to run.