Follow-up to Deaton and Cartwright

Andrew Gelman agrees that randomized trials are often overrated.

(I hadn't  known there was a little literature mocking overreliance on randomized trials. See, for examples, "Parachute use to prevent death and major trauma related to gravitational challenge: systematic review of randomised controlled trials" and "Does usage of a parachute in contrast to free fall prevent major trauma?: a prospective randomised-controlled trial in rag dolls".)