I wouldn't write off someone's science takes based on their macro-economic takes. Macro is notoriously difficult to apply the scientific method to because of the lack of counterfactuals.

Fwiw I thought that Friedberg and Chamath were more in agreement than in disagreement: that debts and deficits need to be reduced

co-founder stelo.com. theoretical cs phd dropout. into math, music, ml, macro, markets, surfing, writing amandhesi.net

The disagreement was just about whether debt-to-gdp is a useful metric to guide policy. I think it's kind of a moot point. 

There's consensus that if the holder of the reserve currency levers up too much and can't create enough growth to make interest payments it risks losing reserve status