The SpaceX stock is floating solely (and temporarily) on fairy dust, it will not have any impact on the stock what-so-ever.

As the market goes, so goes the multiple being granted to SPCX. That is, when the AI bubble contracts on the multiples being granted, SPCX will decline dramatically. In my observation HN typically widely can't differentiate properly between the real AI economy being developed and the multiples being temporarily granted in the stock market, it's common on here that people think they're the same thing ('when the AI bubble ends'). Back in reality what is going to happen is an implosion of the multiples when the growth slows (or suddenly stops due to an economic shock), and despite that the AI economy broadly will radically expand regardless over 10, 20, 30 years. See: the Internet build out (and market valuations), it will occur much the same conceptually.