They were, just not as many. https://www.wired.com/story/the-worlds-biggest-bitcoin-mine-is-rattling-this-texas-oil-town/ https://www.wired.com/story/the-world

They were, just not as many. https://www.wired.com/story/the-worlds-biggest-bitcoin-mine-is-rattling-this-texas-oil-town/ https://www.wired.com/story/the-worlds-biggest-bitcoin-mine-...