Ezra Klein here
(HT Marginal Revolution).
"The answers are that we do more stuff and have more technology...."
And no seriously ill patients ( or their relatives) want a cost-benefit analysis done on them.
And generally no American wants to or is allowed to " go gentle into that Good Night. "
More comprehensive than the blog posts.
A cricket fan could say : History is like Test matches , Journalism like one-dayers and Blogs are like Twenty-Twenty.