Most phenomenal startup teams create businesses that ultimately fail. Why? They built something that nobody wanted.

Zero invites imagination, but small numbers invite questions about whether large numbers will ever materialize.

Entrepreneurs can't forecast accurately, because they are trying something fundamentally new. So they will often be laughably behind plan - and on the brink of success.

Vanity metrics are the numbers you want to publish on TechCrunch to make your competitors feel bad.

If you can’t out iterate someone who is trying to copy you, you’re toast anyway.

What if we found ourselves building something that nobody wanted? In that case what did it matter if we did it on time and on budget?

This is one of the most important lessons of the scientific method: if you cannot fail, you cannot learn.