It is hard to falsify as they are not very open but I believe the keyword here is believe. It is faith/intuition based. Certainly fertile ground for exploration but people who argue back and forth about it remind of the "are we alone in the universe" conversations.
"Depending on how you define it" is too load-bearing in that claim; there are non-crazy ways to define each of those initials such that 3.5 is also a general intelligence.
And I'm sure him saying that has nothing to do with marketing
Totally good point and fair to be critical here. He is the CEO after all.
Did he actually say this? Do you have a source?
He mentioned it on a recent Lex Friedman interview on YouTube.
Do you know at what point in the video he mentioned that (timestamp)?