What is your opinion about crypto currency like Bitcoin and Etherium? I think theoretically system is pretty interesting and may have multiple advantages to avoid inflation of money and it can become virtual gold, but I think it have more flaws than advantages.
Keeping up that block chain system require extremely good computers to keep it safe. Bitcoins have never been hacked thanks to that block chain system. That mean crypto miners will constantly buy graphic cards out from the market. These graphic cards could be used for something more creative like office work. Even gamers suffer from that. Have you seen how hard it is to get graphic card for gaming or these cards may cost double the original price? Or how hard it is to get playstation 5? You need these same components for consoles as well.
Another issue is electric. These computers use more electricity than my whole country combined. All that energy have been used to keeping up crypto currency system is absolutely insane imo. And more and more common this become, all the expenses just increase.