But it's not elastic. Or rather - it can be elastic theoretically but it will never be. If you have a cheap or even negative energy generation during peak generation hours and decide, hmm, I can run some hashing meanwhile without affecting demand. Ok, but then why would you turn off during peak demand hours? Why would you turn it off at any time? Why would anyone? It's still profitable, so everyone will run hashing 24/7. Just like today.