Anyone paying attention to Musk would have known for some time that he is a vain narcissist who says a lot of unfiltered and frankly stupid shit and hates criticism.

I think the first prominent example of this was when those kids were trapped in a cave and everyone laughed at his dumb ideas to get them out and he lashed out calling a rescuer a pedo. A smarter billionaire would have just offered to pay for any logistical support they required and in the aftermath maybe given a stipend for the dead rescuers and built the kids a football pitch. But not old Elon.

As for Neuralink I think it's safe to say it'll go in the failure pile along with the Boring Company.