OK, but the energy supply to those humans doing the work is not explicitly identified, thus the physical implications thereof are not explored.
You might agree Marx, and all economists to date believe firmly in the idea that human labor is always needed, to create value as defined by humans.
Yet we can see in theory at least humanity carrying out no labor at all, served entirely by automation which we created for that purpose. Creating, is more of a source of value than labor, though labor is often needed as things were, it is becoming less so.
The only thing needed to fuel it all is free energy, which we see uniquely comes from the sun, in exchange for nothing, no labor to extract, it is donated to us.
Since all money is issued on promises to pay, which are ultimately promises to extract, it is not conducive to rewarding correctly for use of energy donated.
Money has to, and will change, to allow all of us to be "Lazy", if we so choose.
Understanding that, is key to ending the slavery of capitalism.
The implications of using that donated energy is that all capital is diluted, eventually to zero.
We will do it by issuing free money, when it is needed to save all people.
I believe this is a very different world than seen by Marx, he was simply not aware of any of this.
However, it looks like Nikola Tesla, and JP Morgan might very well have been aware.
The title of Marx's book says it all, "capital", he defines value as all kinds of capital.
He was clever, a genius no doubt, but he was not equipped with the tools of modern formal Systems Engineering we have now, which assist us to anlalyse the whole system.
We just have to accept the age of both Marx, and capitalism, are gone.
Now we are moving to something we might identify as energyism, as we have to, or go extinct, it seems to me.