Where this started
It started in a Canadian basement, December 1976. I was fourteen, listening to a diesel generator hum through another oil-dependent winter.
One beautiful, clear day, minus fifteen outside, I noticed the brick veneer on the sunny side of the house was warm, above zero. I thought, huh. What if we put that mass inside the home, behind larger windows, collecting the sun's energy? Internal storage, heated by the sun. Maybe no furnace at all?
Then I saw it, grocery shopping with my mum at the local Dominion. Wow. A Popular Science cover on the magazine stand, showing a double-skin passive solar home that needed no furnace at all, just sunlight, orientation, and geometry. Something clicked. Spent my last buck from my paper route and bought that copy. A house can work with the sun, instead of fighting it.
That's the seed everything else grew from.