> It's roughly 20% of the total GDP of the United States.

As of 2025, it is more like 18%. For other highly developed nations, the average is about 12.5%. I think a lot of that difference can be explained by the very high salaries paid to medical workers compared to those other highly developed nations.

    > In exchange for 20% of every hour you work for your entire adult life you get 1 extra year at the end of your life.

This isn't a very apt comparison. Think about it a different way: How much can I keep if I give up that single year of life?