Walter Isaacson

And certainly Einstein had ecolia.

He would repeat things.

He was slow in learning to talk.

So I think visualizing helps a lot.

And with Musk...

I see it all the time when I'm walking the factory lines with him or in product development, where he'll look at, say, the heat shield under the Raptor engine of a Starship booster.

And he'll say, why does it have to be this way?

Couldn't we trim it this way or make it or even get rid of this part of it?

And he can visualize the material science.

There's small anecdotes in my book, but at one point he's on the Tesla line and they're trying to get 5,000 cars a week in 2018.

It's a life or death situation.

And he's looking at the machines that are bolting something to the chassis.

And he insists that Drew Bagley, not Drew, that Lars Moravy, one of his great lieutenants, come.

And they have to summon him.

And he says, why are there six bolts here?

And Lars and others explain, well, for the crash test or anything else, the pressure would be in this way, so you have to.

And they were blah, blah, blah, blah.

And he said, no, if you visualize it, you'll see if there's a crash, the force would go this way and that way, and it could be done with four bolts.

Now, that sounds risky, and they go test it and they engineer it, but it turns out to be right.

I know that seems minor, but I could give you 500 of those, where in any given day, he's visualizing the physics of an engineering or manufacturing problem.