This bubble will never burst. The big investors are feeding a leverage cycle and cannot afford to stop. In addition, corporate nepotism has taken hold - for example, AI firms(the current flavor of software) invest in hardware companies. Hardware companies make money as the AI firms buy their product. Hardware companies then take that money and in vest in AI firms. The 'free market' no longer looks at 'value' to assess prices. And as equity prices become a reflection of the algorithmic trading that AI is doing, we have no way of knowing when and if they will decline.

The big investors don't have control over the leverage cycle; the banks do. What kills a leveraged bubble is when banks won't lend any more for leveraged investments. Then leverage quits making the market go up. Then people realize that the market isn't going up constantly any more, and so a few get out. Then the market goes down a bit, and some people who are leveraged panic and get out. So the market goes down more, and a lot more people who are leveraged panic...

The big investors can do whatever they want. They don't have the final control here.

the thing with leverage is that eventually you have to pay the debt back

in the best case scenario the government backstops it via money printing but that's just distributing the pain to the little guys

the destruction still happens