It's become popular in recent years to say that the idea doesn't matter.

You need conviction in your own beliefs, and the willingness to ignore others naysaying.

People that are really smart and that can learn new things can almost always find a role in the company as time goes on.

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

If someone is getting every decision wrong, that's when you need to act, and at that point it'll be painfully aware to everyone.

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

Because so few people make an actual long term commitment to what they're building, the ones that do have a huge advantage.