The best ideas often look terrible at the beginning the truly good ideas, don't seem like they're worth stealing.
One thing that often disrupts momentum and really shouldn't is competitors.
It's become popular in recent years to say that the idea doesn't matter.
You should be giving out a lot of equity to your employees.
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.
... you can think about that for everyone you hire: will I bet the future of this company on this single hire? And that's a tough bar.