None of these companies are worth the numbers being tossed around, but SpaceX especially so.

Its Schrodinger's IPO: the space business is so successful how could you question the company's worth? You can't afford to miss out on the next biggest AI business to invest in!

What's going to happen is the music will stop and it's just a question of who cashed in when it does. OpenAI are easily the most vulnerable here.