[DaiPlusPlus]

His expectations ("predictions"?) are predicated on three things: climate-change, peak-oil and "cultural bankruptcy".

I understand the most realistic scenarios for climate-change do indeed suck for everyone involved, but won't lead to mass human extinction - and the predictions of "water wars" were not grounded in realpolitk.

Of peak-oil being a harbinger of imminent societal collapse is immediately bunk: the world's economically leading countries and supranationals have already put in place plans for post-oil sustainability - such as fossil-fuel car sale bans within 10 years. Furthermore Covid has demonstrated that society carries on functioning when air-travel is cut to a fraction of its former volume - leaving only international shipping and road-haulage as the remaining oil consumers without a decent post-oil plan yet - but it's demonstrable that there's plenty of oil left to keep those services running for decades with current proven reserves - considerably more-so with the expected end of gas-powered cars within a couple of decades.

The author's definition of "cultural bankruptcy" seems to be "the US is exporting individualism to the world, which will mean an inevitable decline to non-cooperation and (insert your preferred game-theory metaphor here)". Whatever one may think of that, he doesn't establish a reasoned connection between the two - just hand-waving.

I think the author just has an anxiety disorder that needs better management.