How many people here have at least one friend or family member who have recently -- out of the blue -- asked you to tell them again, "Hey what's the deal really with that bitcoin crypto currency stuff you were telling me about last year?"
I had that happen...right around the time of the market top in 2013.
It is a bearish indicator. It means that the wave of FOMO has reached the masses. The only difference at that point is how many decide to buy and how much, but the important fact is that there are really no more big wave of people to reach (at least not ones with money). When Mayweather and Paris Hilton are promoting ICOs, when it is being covered on CNBC, Bloomberg, etc. every day, who is left? Price gains are certainly still possible, but the risks have become a lot more symmetric.
There is one more wave to reach and that is conservative institutionsl money that will allocate to crypto as an asset class given ETFs (or similar vehicles) but not before. That's potentially a big wave ($1 T or more). It may or may not happen this cycle.
I'm not sure that this is the right interpretation. I was one of the people who inquired one of my friends "Hey what's the deal really with that bitcoin crypto currency stuff you were telling me about last year?" in 2013. But he didn't convince me to get involved, and when it crashed it confirmed my doubts. So I was very late.
Back then I also saw that interest around me but just like me, almost none of the people I knew got involved.
Now, things have changed, I know quite a few people (for example a befriended actor, a young female architect, another guy who's always between jobs) who neither have a lot of money nor have ever invested before but they are putting a little into crypto. But it's still only a small percentage of the people I know.
And I know all kinds people with lots of money who have not (yet) invested in crypto. I just met a very wealthy couple from Los Angeles and they haven't even heard of Bitcoin. (I couldn't believe it). This is, of course, unusual but I think crypto is still far away from the masses.
So, "who is left"? I would say it's the 99%. Crypto is not just interesting to the classic wealthy investor types but to all kinds of people from all walks of life. And it's just starting.
But with all the nonsense coins and ICOs there is also a lot of potential for market correction. If you look at the dotcom bubble, most companies went broke but the few that emerged have grown much larger than before the bubble popped.
It will be interesting to see if it will be the ONE cryptocurrency to emerge or if the future will have a multitude of successful cryptocurrencies.
A strong correction would be nice, because i would like to invest more but I'm not counting on it to happen before a substantial rise and then it will be questionable if we will even see the current levels again.
Edit: I just read your last comment, I guess you're right just not sure we will see a correction at this level. Who knows...
Edit2: Another thing, people always quote the burst of dotcom bubble as to why crypto has to burst but there was only one dotcom crash so far (17 years ago) and we already had one big Bitcoin crash, so perhaps that was the one.
I'm not saying there won't be a crash, I'm just not sure that it's as inevitable as some make it out to be.