Conveniently, about the amount of time it takes for the average person to forget and/or rematerialize in a new parallel dimension

The average person is not aware or does not care about Elon Musk’s claims and whether or not they come true.

The average person sees some headlines and gets a vague awareness that the guy is some kind of super genius who is single handedly changing the world.

The average person who has an opinion on musk has roughly the same long term memory consolidation pattern as the average person in general.