You're going on a bit of detour there, doc

I already mentioned several of your points (e.g. that mining is based on the "currently best know procedure", not the provably optimal procedure).
And I know of course you're not facetious about the (lack of) intrinsic value of bitcoins, but you probably were facetious when you were asking what their weight is...
Good point about quantum computing possibly getting around the (Landauer) limit though. Well outside my field though, so I can only wonder if it'd simply
lower the limit, or entirely remove it possibly.
It's just the kind of specious FUD that people have to resort to when the price is rising. I think that's a good indicator of reversal, where suddenly the narrative shifts to grasping at straws on bizarre misguided technical grounds that are akin to arguing "well what if somebody invents free energy?'.