> It's not aiming high when anyone competent and informed can tell him there's no way, and he pays many competent and informed people to tell him.

You know that this is exactly how SpaceX won big? There were many a competent, credentialed people telling Musk that reusable rockets are a pipe dream, all the way to the first Falcon 9 landing and reflight. Some of them even continued giving such "competent and informed" advice for many months afterwards.

> Setting a goal is not the same as telling people the company that you are dictator of is going to do something.

That's literally what it means, though.