> the economics are holding it back more than the technology is.

Is it not more the missing political will? (and yes, they are related as politics always seeks/ caters to big corps to get their buy-in)

In 2008 when the financial system felt some distress, the German finance minister provided 400bn euros over a weekend to Deutsche bank and others. It took politics 2 fregging days to unlock that amount of resources. And it was like no questions asked.

And we kept pumping that amount in there on a quarterly basis ever since.

I do not need to go into military spending.

So for me the earth ecosystem which needs to sustain is as a species is in as much of distress as the financial system was back then. It warrants the same sense of urgency and resource allocation.