He's more knowledgeable than the prototypical PHB. However, engineering work requires some form of design analysis (ultimately numerical) to prove that the end result will most likely function. He hasn't done that and no book smarts will instantly make you an engineer. He doesn't need to do that either and is just as important an asset by being a well-informed manager.

He can't. He lied. There are many people saying untrue things in this thread. Not all of them are as obvious.

I hope to God the auto industry doesn't lose the competition which scares them into changing themselves more rapidly than the coming fires and floods. The whitehouse is no friend to the renewable energy industry, advocating for the reduction of the price of oil.

You have no source. All you did is claim that Elon read some books.

Elon Musk is not an engineer and does not do any engineering at Tesla.

You just said that Musk memorized several textbooks... Idk what kind of source can bail you out of that one. Probably discredits the source if anything.