Of all the different issues we face, three problems pose existential challenges to our species. These three existential challenges are nuclear war, ecological collapse, and technological disruption. We should focus on them.
When I look at the signs today, I see a very strong trend back to what I call tribalism, back to nation-states, nationalism, religiosity, all those divisive forces that many intellectuals in the 1940s, ’50s, thought were going to disappear gradually. That did not happen.