Investors immediately lose confidence in the entire space. Anyone who doesn't have other revenue streams -- e.g. Google, Apple, Microsoft, X -- probably goes under or sells shortly thereafter. the aforementioned big tech companies pull back investment considerably because shareholders no longer want to see investment in AI because they see it as a waste of capital resources that could be spent on things that actually make money. They go for the simplest lowest cost implementations and largely abandon advancements. Billions if not trillions of dollars in data center plans and hardware purchases are cancelled causing significant pain in the hardware sector. Hardware manufactures try to pivot to the next thing, but it will be multi year slow process to pivot.