I never thought about the cost or barriers to entry. Have recently heard the radio was a big cause of WW2. Allowed FDR Churchill and obviously worse extent Hitler, broadcast propaganda from their bunkers using their slick tongues tapping into jingoism. You mentioned in lecture 37 that Hitler was given a radio platform after being convicted of revolt, amazing.
My awakening moment came while living in Britain, reading local papers (different worldview in English language) and stumbling across 2 historians debating how to have kept the British empire. After fierce debate they both agreed that Churchill should have kept the Americans OUT of the war and let the Germans and Russians mutilate each other. Then stated the Russians actually won the war since 6 of them died for every 1 western allied soldier. And this was post ’07 RP presidential run where I couldn’t wrap my mind around the anti war argument. Also seeing a Jap girls skin melting off in Paris museum changes things. We are sheltered from those stats and images. Indoctrination via (semi) good intentions.
Have read some Diamond, will read some more. Ideas do matter and this forum helps clear up the airwaves.