Everyone was laughing on Ray Diallo when he said his famous phrase "cash is trash" on 2019 and they even laughed more when his hedge fund tanked 30% under water on early 2020. guess what, US stock markets are bullish again and on a stunning V-shaped recovery and Gold recently hit all time high and bitcoin of course in its way to break new price record. So, who's laughing now!. he was damn right.
actually money will continue to be considered valuable if people think it is, because from the beginning money is just plain paper that is given a value and people consider it valuable so money has value, but in terms of supply of course in the long run money will decline in value because someone can print it unlimited different from land, gold, diamonds, or other items that have limited supply.