What is the greatest thing Musk has done?

To answer this, we need to ask:
Why is the Delorean made with brushed stainless steel panels?

The reason is that California would not allow him to paint the cars he manufactured in California.

Musk paints (painted, past tense) cars in California. How did he do that?

How did Musk get Paypal to exist?

I thought about making a P(H)atreon before it existed.
And, i couldn't do it without becoming a payment processor. And couldn't do that without being a bank. And couldn't do that without express permission from the Fed.

So, how did Musk make Paypal?

Everything Musk has done has been out of Popular Science or Popular Mechanics magazines back in the 70s. They are not new or innovative. Musk has just gotten them past regulations, somehow. Even gotten a lot of money from the govern-cement.