Hah, it doesn't sell, because we're at a local maxima with electric AC right now.

It's so easy to literally build a square box and stick a cooler/heater in it that everyone (including me) chooses to do it.

Does that mean it's the right way for us to be handling heating/cooling for our homes? Sure seemed like it 50 years ago. Sure seems less like it today with climate change, but we've already picked, and now general cultural preferences make it hard to undo (not even mentioning sunk costs on buildings that are hard to modify)

Basically - the point they're making is that as we homogenize, we put all the eggs in one basket. And we have a long history of making decisions that seem GREAT! today, but actually have some downsides at scale (like electric AC contributing to climate change, requiring more electric AC, making climate change worse, etc)

What is the cost of freon on earth’s ability to radiate heat? Even if the cooling cost is less power degree than heating, there’s still a cost, scaled by number and size of units. Do enough of us have the discipline to only use the decadent, luxurious things for the outlying cases?

The substance you're talking about is already essentially banned in the developed world.

What is being used instead, and what are its potential impacts? What happens to all the freon (and other chemicals banned in developed countries) after it is banned? Do we sell it like we did with DDT?