At least as long as Musk is the CEO, perhaps. I don't think it's easy to find another charismatic figure to keep it going.

It's a different kind of hype than Nvidia has, which is showing very high and fast growing revenues (which may not continue, but they're real now). Jensen I think is not as critical to the AI hype as Elon is to his companies.

All these major tech companies eventually get leadership changes. Apple, Google, Amazon, have all done well because they're real companies and go beyond their original leadership. Tesla and SpaceX I think would surely go down the moment Musk is no longer in leadership.