Why don't bubbles collapse?

Could you please explain why bubbles in the financial market, particularly in the realm of cryptocurrency, tend to persist despite warnings of their potential collapse? What factors contribute to their sustenance, and why do they seem resilient to the forces that would normally deflate them? Is it due to market psychology, speculative behavior, or are there deeper structural reasons that allow these bubbles to inflate without bursting? Understanding this phenomenon seems crucial in navigating the volatile world of crypto investments.