Having an estimation is normal and you can have it on your own. I doubt that no one has ever predicted the market will be up again by $20k.
Needless to say, the market has been up again and those long term folks like me won by doing it.
Long-term investments in bitcoin have always been profitable. Even those who bought Bitcoin at 20k have made very good profits in just a couple of years. Now the same situation is possible when the price is 47k and many people think to buy or not, but in a few years the price will double or triple again. Only I guess that before such a large increase there may well be a big drop, as it was in March 2020. It may not be, but the probability is still there.
You'll have the best asset as you hold bitcoin. And those who have bought at the top, they'll now be encouraged to hold it until the price goes back again.
But those who have bought during 2017 ATH, it is unlikely that they've held until now.