We hear again and again from founders, that they wish they had waited to start a startup until they came up with an idea they really loved.

So it's worth some real up front time to think through the long term value and the defensibility of the business.

These all sounded really bad, but they turned out to be good. If they had sounded really good, there would have been too many people working on them.

Just put a little pin in your mind: when you cross 50 employees, there are a new set of HR rules that you have to comply with.

You certainly don't need to have everything figured out in the path from here to world domination.

... for the top twenty most valuable YC companies, all of them have at least two founders.

To get the very best people- they have a lot of great options, and so it can easily take a year to recruit someone.