50 years is not "a fresh credit card". If someone predicts something and 50 years later it hasn't happened, I think it's time to re-examine their assumptions

And what were they predicting? Most reasonable predictions were that once the GDP to debt ratio reaches a certain point that’s when issues arise. It’s just now nearing that 100% of GDP mark. Obviously predictions on a national scale can take decades. The “fresh credit card” was handed out in the 70’s.

Just because climate change hasn’t ended the world yet in 50 years doesn’t mean it’s not a serious threat.