Crypto currencies should be banned by law. This crap is the most useless thing humanity has done right after the fidget spinners. Computing some useless numbers, wasting gigawats of power on it for what exactly? Go and do compute on cancer and HIV research, but crypto currency? WHY!? No to mention it fucks up the graphics market yet again.
Its a waste of resources as compared to what?
At least quarter billion people working directly or supporting the banking system all around the world?
Now that's a waste of resources and those people could be far more useful to humanity.
Let the machines crunch the numbers and use the human creativity for Cancer or HIV research.
PS: i never mined, and I don't own any digital currency.