Say you're Elon Musk, billionaire and really smart guy. And you're asked to give a speech. That speech will be viewed by millions.
You probably have a speechwriter, and a PR consultant, and hey, why not a body language consultant. When you get on stage, you're going to present exactly the message you mean to. Anything less would be a waste of your time, right?
"Really smart" and "elon" are not two words I'd put together in the same sentence.
Reminder this is the same man that paid someone else to play on his video game account for him so he could pretend to be better at video games.
I don't actually believe this, but am picking an argument that I expect deadeye an Elon apologist to believe. If you don't think he's smart I don't need to convince you?