Is it Okay if Scott Adams agrees with you?
I was going to put this in Xist's thread about building a shed, but consider it here. The Pacific Northwest has deposits 30 ft deep of the ash that the [Ancient] Romans used to make concrete with Pozzolan, unreinforced and underwater. In a Youtube video
(Supervolcanoes in the Pacific Northwest
54,427 views — Central Washington University — Published on Apr 25, 2019)
At 42:00 we find out that the big dams that Woodie Guthrie (Arlo's dad) sang about were made with it. That explains their white color.
Truckloads of that stuff would facilitate producing ecological pod houses.
edit: How about a little of this? [Dennis Hopper in Easy Rider]
Episode 516 Scott Adams: The World’s Dumbest Tweet AOC, It’s a Doozy
A 15 minute rant on — it's not just dumb
it's dangerous to say fossil fuels haven't improved human health.