Well overvaluation it's really possible and for sure if people like you dollar vigilante says so it makes a big correction or crash even more likely to happen! (It is not a criticism, if you belive it you definitly should say it)
But I see a lot of growing interest and people wants to know how it works not just to make money but when I start explain they start realising how bad is the actual financial system so even if this correction happen I think is going to be shorter than the last 3 times as a lot of thing are happening in the space ;) and lots of people are waiting to buy cheap bitcoin, that wasn't happeing as much back in 2013 so as the market is changing i don t think the history will be followed in the exact same way but more with a similar pattern!
About Trutheum what if somebody writedown I wanna kill trump ? I feel like we need a decentralized validation system for project like that