... if "builders" take the cryptocoins to build something then it might have the value of 60.000 today and tomorrow maybe 600,-- - depends on the mood of the "investors" to gamble a bit .. if Elon Musk sells BTC for 20 Millions the BTC crashes down 50 % .. and Musk has fiatmoney enough to buy them back cheap and earn another 20 Millions overnight .. always because somebody who paid 50.000 or 60.000 before is afraid that BTC will crash totally and sells in panic what he is holding althoug he is losing 50 % .. its a pure speculation .. like shares .. just hat shares usually have a companay behind and cryptos have nothing .. only the stupidity of Millions who think they can make a little extra and are betrayed by those who have a lot to gamble ! The Casino always wins !