Effic

Exactly. For example, even with supposed โ€œinefficientโ€ green power technology, when you take the externalities of fossil fuels into account it turns out green tech is always either a bit better or hugely better than fossil fuels.

There are hundreds of examples like this, by the way! Most of the time, as James points out, efficiency is traded off so we can make life worse for 90%+ of people.