I basically agree with the analysis, that technology makes human material progress potentially sustainable well beyond our current numbers.
Our biggest challenges are social and economic ones. First and foremost, is to push against the tides of conservatism on both the left and the right, which see sustainability as either a matter of "going back" or as unworthy of a goal at all.
Or, as he points, out, idealogical threats are the largest threats to humans. People blindly following idealogies and ignoring data is the most likely thing to cause large-scale deaths.
Or to put it more simply, humans are the greatest threat to humans. Always have been. When people talk about evolution, they usually use the example of running away from a lion or some such. But it's much more likely you were running away from another person.
Our biggest challenges are social and economic ones. First and foremost, is to push against the tides of conservatism on both the left and the right, which see sustainability as either a matter of "going back" or as unworthy of a goal at all.