I didn't catch that era either, because like you, I only really got into mining a couple of years ago. Now, as I get it, it's a full-on business. Crypto mining companies run huge farms of ASIC rigs, making sure all the conditions for smooth mining are in place. And obviously there's the chance to host or rent gear, like with Cuverse https://www.cuverse.com/miners, which makes the whole process super simple. You pick your gear remotely, rent it and the data center space, and mine remotely.