If there were a lot of single founders with good ideas YC
might consider creating a new program called 2and20. If
your single founder application is accepted you have 20 days to get 2 additional founders and resubmit for a second approval?
(a) There's not a scarcity of applications
(b) YC is emphatic that you should have known your co-founders for a whileInformally YC appears to be doing something like this anyway. cf Swartz & Reddit. Is there more?