No Emilia, I’m utterly serious. To begin with, like lots of people, I was intrigued by Bitcoin/Blockchain. I hold a small amount of Bitcoin (just as I held a small amount of David Chaum’s Digicash back in the 90s) but this is serious. PoW is an unqualified disaster. There’s no way to limit its environmental impact. And the idea that, somehow, a surplus of renewable power is going to emerge that we can use to run the exploding Blockchain ecology is pure magical thinking.