Even though plans themselves are worthless, the exercise of planning is very valuable and totally missing in most startups today.

I think as a rough estimate, you should aim to give about 10% of the company to the first 10 employees.

... but actually it sucks to have a lot of employees, and you should be proud of how few employees you have.

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

Why couldn't it have been done 2 years ago, and why will 2 years in the future be too late?

Mediocre founders spend a lot of time talking about grand plans, but they never quite make a decision.

One of the pieces of advice that we give at YC is: try to work together on a project rather than just doing an interview.