[jpcfl]

> There is no 1:1 relationship between mining cost and reward on a single block

Ah, I see what you mean.

I think I've been mixing up my costs. When I wrote the original comment, I was thinking about the total energy cost for mining this block, i.e., the energy cost of all the nodes that worked on it. But the truth is, I have no idea about the economics of BTC mining. I was just being facetious :)