TLDR (YC S2020) Application Video

Rejection email from YCombinator:

Thanks for applying to Y Combinator. We're sorry to say that your startup was not selected to interview for the upcoming Y Combinator batch. Please don't take it personally. We carefully reviewed thousands of applications and since there's a limit on the number of startups we can interview in person, we had to turn away a lot of promising companies.

We hope you reapply for the next batch; in fact, we encourage it. The next batch will run from January–March 2021 and the deadline to apply for it is in September 2020. Applying multiple times does not count against you and a surprisingly large number of companies are funded after applying more than once. Over 50% of the startups we accept are repeat applicants.

Best of luck,

—YC