>Elon Musk is a little arrogant due to his success in business and likes to make 'fun' predictions based on his very limited understanding of whatever field he happens to be talking about. He sounds like an eager undergrad student that tries to demonstrate his genius to his professors and the class. I don't understand how anyone can take him seriously in technical fields.

This is a fair assessment, but I wonder if not being constricted by cynicism is more of a pro than a con in the long run.