they were looking at me expectantly, like baby birds looking at their mother. and afterwards, i felt sort of bad because i had thought i was going to do angel investment, and i hadn't gotten around to it because i didn't know how. i thought, i'll do it and start doing angel investing. it wasn't supposed to grow into this big thing. this is one of the things we tell founders. the best way to start a startup that is going to take over the world, just try and start a project you think would be cool to work on. y.c. was an instance of this. >> how did you come up with the y combinator? >> the original name was cambridge seed. >> we were in cambridge. >> the y combinator is a trick, which is a formal expression to a math concept. >> how did you decide to work together? you were not married yet? that is a big decision. >> it was -- it was scary. we were only dating for a year. ♪ >> there are myths about so many of the great companies, start-ups, founders that are boiled down into legends and what is the myth of y combinator and what is the reality? >> people don't re