system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What does it mean when people say America is the “wealthiest country in the history of the world”

I don’t totally understand this, and it seems like a somewhat subjective thing to say - the things we value as “wealth” have changed, and it feels like we’re judging history by our current perspectives. What is meant by this claim & is it true?
gpt
Even though the things we value as wealth has changed, wealth was always wealth.  


Whether it was the back when we used to solely rely on barter or even further back when I'd imagine being the best hunter in your tribe meant you were the wealthiest, forward to today when we exchange currency.  


Yes it is true that the U.S. is the “wealthiest country in the history of the world” it simply owns nearly 1/3 of the total world's wealth. No single country before has had that share before.  
Even when you include every country in Europe, they still don't match U.S.