I think that image oversimplifies a very complex thing. Not saying those phases are not correct because they are, but I think it's missing the consolidation phase after the euphoria. That graphic is probably perfect for bubble behavior but if you really have something quite revolutionary in hands, and with a real use case, then I think you will get a cool down and consolidation phase. There is no reason to go to denial, panic, etc, until depression, because it's time to just use what you have.
The crypto bubble seems very much like the dotcom bubble.
That too was a revolutionary development like you say but that didn't stop the market from falling into panick.
People were throwing money at projects that had no use in the market, but believed in them just because they were part of the hype.
Same thing is happening with crypto.
Best thing you can do is invest in coins and tokens which are supported by projects with good fundamentals and real world use cases.
That way even in the event of a crash you can ride it out save in the knowledge that even if it is a victim of the panic and depression the vale of the coin will be realized with time and should start to correct.
