Um, you're not sure that *all the energy producers in the world* intermittently mining with their excess energy would be enough to offset what you think will be lost?
That's like saying you're not su...
To keep roughly the same current total hashrate/security (or more) on only intermittent and excess energy? No, it's not so obvious to me why that would be the case. But sure if we make big optimistic assumptions I could see why you would think so (ALL energy producers in the world, no alternative more profitable uses of that energy, high transaction activity on-chain, etc)
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