You are correct.
They aren't selling a whole lot on the way up. And they probably aren't planning on holding if it starts heading the other direction. A lot of people have the exact same intention ... ride it up, then get out when it turns.
I doubt the exist doors are wide enough for everyone.
So, what to do?
There's a saying that goes something to the effect of, "nobody has ever gone broke taking a profit".
Honestly I dont see it happening. what makes you think that good investors havent already hedged their initial investment and are riding out the rest as pure profit? I know im not the only investor to have done this,
everyting at this point to me and im sure alot of other people is just gravy, i think that since the coins are in such powerful hands (those who already have a crap ton of money) are smarter than that, why would someone dump all their coins unless it was past examples of what we've seen with people who are not investors dumping all their coins at once?
dumping all you had would be retarded considering we are in such an uptrend,
You realize when someone is holidng 40k Coins when it goes up 1 dollar they make 40k? if they have fiat and not bitcoin during the uptrend then you are stuck exactly where you are with just your money