The big problem is the cold war mentality is back, and both sides will compete a lot more rather than cooperate. Combine this with a bit of an arms race by China and the US, and the chances for cooperation on existential risk are remote.
This is a separate discussion, but it is important to point out that the literal Cold War had the opposing powers cooperate on existential risk reduction. Granted that before that, two cities were burned to ash and we played apocalypse chicken in Cuba.
The big problem is the cold war mentality is back, and both sides will compete a lot more rather than cooperate. Combine this with a bit of an arms race by China and the US, and the chances for cooperation on existential risk are remote.
This is a separate discussion, but it is important to point out that the literal Cold War had the opposing powers cooperate on existential risk reduction. Granted that before that, two cities were burned to ash and we played apocalypse chicken in Cuba.