By your own definition profit is the universal motivator.

Solar energy is the only kind which is free after installation.

Free as in it cost nothing in Earth resources, or in human labour, except maintenance which is negligible compared with what is received.

So the miners, an incredibly competitive community, have to move into solar, as that is free, so they get money for nothing, after installation, which can also be paid back by free money.

As one has done it of course they all must. Remember winner takes all.

Of course they want to maximise their free money.

So they fund more solar installation.

This is all simple market dynamics which I think you know very well John.

As a result, the Earth economy is no longer a closed box, and the opening is getting wider every day.

I am not sure how to explain in any simpler, more logical terms.

The world is changing like you said, but maybe not in the same way as we thought.

I admit I was surprised to find this, and it has taken a long time to find, but we always knew Kardashev was right, we just didn’t know how it would happen.

Here it is right in front of us, we are lucky to be witnessing it.

When done, we will be celebrating for generations.