[goldenkey]

The human races net work output might be fixed - but through the spawned creations and mechanics - the work one does and thus the spawn they create, can be vastly consequential. Energy consumption is not fixed. Human work is fixed but when augmented by technokogy it is wildly divergent. There is a difference between using millions of watt hours for mining versus using it to create things that have a far longer shelf life..things like crops or PCs which will continue to provide further value. Bitcoin mining is short sighted.