Elon has Autism Asperger's. Its a mentally disorder of the brain.
It is known that some people with autism have the highest intelligence IQ that looks kind of Hidden behind the disorder. Symptoms are lack of social interaction and problems with communication.
Autistic kids has a fascination with 1 particular thing or field. Maybe as a kid Elon fascinated about travelling and going into space that's always on his mind.
It is also known that autistic kids can sometimes move on very quickly from something that they were interested in into now something new.
Ditching Bitcoin and going into Dogecoin because it has a cool picture of a dog on it is behavioural example of autistic Asperger's kids changing interest very quickly.
But I doubt autistic people have memory problems like Elon totally forgot about Bitcoin Energy consumption then realised it months later.
I don't know whether he is mentally unstable or not. But he has probably made billions in profit during the last few months, by promoting the Doge shitcoin. Now if his mental illness has caused it, then I hope that I will get that same type of mental illness. Let's not get carried away. Elon Musk is a businessman, similar to Bill Gates, Mark Zuckerberg, Jeff Bezos and Warren Buffet. All they cares about is money. For that they will manipulate the markets and do all sort of unethical things such as insider trading. Only the ordinary people will lose out.