I am no psychologist but I don't think Trump is losing his marbles at all. Or at least compared with 2016. The 'shark' bit is just completely unfiltered stream of consciousness, starting from a rational point (electric motors are heavier and have shorter range than ICE), but in a context where almost no-one else on Earth would have the ego to consider that appropriate.
It reads pretty similarly to the 'nuclear... my uncle... MIT... good genes' speech back then.
Edit: I also think it could be exacerbated by prescription/other drugs.
I am no psychologist but I don't think Trump is losing his marbles at all. Or at least compared with 2016. The 'shark' bit is just completely unfiltered stream of consciousness, starting from a rational point (electric motors are heavier and have shorter range than ICE), but in a context where almost no-one else on Earth would have the ego to consider that appropriate.
It reads pretty similarly to the 'nuclear... my uncle... MIT... good genes' speech back then.
Edit: I also think it could be exacerbated by prescription/other drugs.