FWIW I think it’s an interesting thought experiment. I think it’s especially interesting to draw the parallel to biology. Clearly our brains are doing computation by even the strictest definition of computer, so at which biological level does computation stop? A chunk of my brain is clearly doing computation, a neuron must be doing computation since that is the building block for our brains. Single cells must also be doing computation since a single cell had all of the computational knowledge encoded in it to build me. All of these processes are built upon physical reality, so it’s not that big a leap that similar processes might emerge elsewhere and at different scales and using different physical mechanisms.

I think the application is for cases where you’re already using cement as a building material, so you might as well mix in some carbon and also get energy storage out of it.

It seems like if you have 2 games A and B, the second you start playing them together you’ve effectively created a new game C, which is a game of A and B combined.