I just can't take the power and pollution argument seriously. There's just nothing salient about it. I might have otherwise agreed with the author on their other points but if you can't see the issue with this argument it disqualifies your opinion (which js just my opinion).

"Bitcoin requires lots of electricity". No, nowhere near the scale human activity sans blockchain does and to provide it we burn coal. Like we've done for a looong time before bitcoin. Removing bitcoin doesn't remove the coal we burn. Genuinely daft argument.

And that's before we get into looking at the numbers from areas like the mining sector. Aluminum smelting isn't cheap from a power perspective, yet I don't see this argument leveled against coke.

The answer is renewable energy. Obviously.