21 BTC = 21x410 $ = 8610 $ , it is not small number but I think there are many people have this number . almost gamblers or traders
Wow the price of the bitcoin last year was only $410 per coin and now the price is $2544 I hope to see this thread next year and see how much the price have changed,
21 BITCOIN =21x$2,544 = $53,424 wow that is a huge amount of increase,
But my answer to the topic is I think the ones who owns 21 BTC are the ones who are high roller in the gambling sites and some good trader cause they made some good profit,
And I think that there are other traders who earned a lot of BTC by holding some coin that they bought in a low price and just pump up,
I heard from one of my friends that there was one coin that was only about 9k-10k sats and it pump up into 100+k sats I just don't know if the price is right but the pump that he told me was pretty high.