My point was that the FAA regulates both. So it seems to counter the idea that regulation necessarily impedes progress. I must say, suggesting that the only pr

My point was that the FAA regulates both. So it seems to counter the idea that regulation necessarily impedes progress. I must say, suggesting that the only progress we've seen in aviation is from the 737 to the 737 Max is very disingenuous. Since the first flight of the original 737 in 1967, we've seen - this is just a tiny and obvious sample - the 747, 767, 777, A300, A380, A350... composite wings and fuselages, glass cockpits, fly-by-wire, high-bypass turbofans, TCAS, GPS, ETOPS, ADS-B... it's a very long list of innovations. It's incredible that you think the last 60 years has been static.