So much of the current bubble is predicated on the hype train continuing on its current trajectory. If anything lags behind, the bubble deflates.

For one potential path - Less datacenter construction means less GPUs, so less $$$ for Nvidia, which means less for them to spread around to prop up the LLM industrial complex, which means lower valuations, which means OpenAI and Anthropic can't get their trillion dollar valuations, which means VC's race for the exit to cash out, etc, etc.