We don't only accept 13 startups. There just happen to be 13 in the current batch. Our policy is, and always has been, to accept as many as we think are good enough.

And incidentally, that claim about funding hundreds of companies is characteristically bogus. That number must come from all the investments made by VC funds during the time Brad Feld et al worked for them. That's like claiming that because you worked for Microsoft for a while, you wrote millions of lines of code.

And even so the big winners they "point at" are not much more valuable than the companies YC has funded, despite the fact we're only 2 years old.