…is Rearden metal:

Rand’s fictional progressives don’t want Reardon Metal to succeed any more than their modern, real-life equivalents want shale gas to succeed.

Why not? For the same rag-bag of made-up, disingenuous reasons which progressives have used to justify their war on progress since time immemorial: it’s unfair, it uses up scarce resources, it might be dangerous. Rand doesn’t actually use the phrase “the precautionary principle.” But this is exactly what she is describing in the book when various vested interests – the corporatists in bed with big government, the politicised junk-scientists at the Institute of Science (aka, in our world, the National Academy of Sciences or the Royal Society), the unions – try to close down the nascent technology using the flimsiest of excuses.

It was supposed to be a cautionary tale, not an instruction manual.

…are close to useless:

…here we see a major problem with IAM-based climate policy analysis: The modeler has a great deal of freedom in choosing functional forms, parameter values, and other inputs, and different choices can give wildly different estimates of the SCC and the optimal amount of abatement. You might think that some input choices are more reasonable or defensible than others, but no, “reasonable” is very much in the eye of the modeler. Thus these models can be used to obtain almost any result one desires.

How (politically) convenient.

As I retweeted, they’re worse than useless to the degree that people trust them for policy decisions.