I'm sympathetic to Tom Murphy's analyses, as I used to be fairly doomer-minded as a result of reading them.

But I think it's safe to say that he's been proven wrong. Alternative energy technologies, mainly PV solar, really are tracking along Kurzweil's exponential growth curve, such that energy supply will not be appreciably impacted by the restriction of fossil fuels. (Not to mention he was also wrong about those constraints as well, given fracking of source rocks).

Being in the doomer echo chamber is fun, for a while. But at some point, we all have to leave, as Ran Prieur did, and recognize that the cornucopians are right.