Ive come across Zeihan and I know he talks about this stuff, but there are plenty of alternative sources for the same info.

He's too absolutist for my tastes, he talks about China 'going away' due to demographics. That's just silly, they'll suffer for sure but 1.4 billion people don't just disappear. Also his line about Russia needing to control geographic access points or 'they're finished' is equally silly. They have nukes.