[ben_w]

> necessarily environmentally dirty processes

Increasing false, as demonstrated by groups like this: https://metalysis.com/

[SV_BubbleTime]

Lots of things are “proven” false by groups that don’t do things at global scale.

Maybe it’s possible to do cleanly, that isn’t the reality.

[ben_w]

Not with that attitude. These things move a bit at a time, as factories are built or upgraded and even then only in response to legal obligations or sales pitches. The state of the art in research is basically always ahead of what can be bought, and what can be bought is always ahead of the median that has already been built.