Nervous about joining an early stage startup? Let's talk about risk. There are two types of risk: job risk and career risk. People think they are the same. They aren't. They are very different.
The home run theory of careers:
What matters is eventually hitting a home run, and the way to do that is training hard and a lot of at-bats. You only have to be right once, and it's ok to be wrong a lot of times.
Be bold. Move fast. Work hard. Ignore haters. Keep swinging.