I heard that the mining of crypto-currencies is not as profitable as 2-3 years ago. Is this business profitable now?
All right, the birth of various crypto-currencies has given rise to a whole layer of entrepreneurs and financiers engaged exclusively in trade or mining.
Initially they "mining" on ordinary home computers equipped with powerful video cards, but now in China and other countries there are giant "farms" for the production of crypto-currencies, collected from specialized chips intended only for this purpose.
The existence of such "bitcoin factories" has long been forcing economists and simply enthusiasts of the IT world to think about how much energy this industry consumes and how its existence affects the world electricity market.