I’m not as sure about that. High technology relies on global supply chains. Minerals are mined in specific parts of the globe, there are specialized factories that only exist in certain parts of the world, and so on. Take advanced chips as just one example of that. You can count the number of foundries on the palm of your hand.

As the climate continues to become more unstable, we’re likely going to see a breakdown of global tech chains. In fact, there is historical precedent to this with the fall of the Roman empire where a lot of provinces rapidly descended into the dark ages in a span of a few years.

It’s also a question of whether there it’ll be possible to support large cities agriculturally. Even temperate areas will end up having large climate disasters. For example, we’re already seeing this happening with massive forest fires in US and Canada. These kinds of disasters are disrupting food production already, and it’s only going to get worse.

One solution could be to start growing food indoors. Incidentally, China is already starting to do a lot of indoor farming which is a good way to ensure steady food supply even in face of stuff like heat waves or other disasters. China is probably also in the best position when it comes to preserving supply chains given that most manufacturing is already happening there.