> I would have thought that transatlantic routes would be sufficient to economically justify supersonic flights if they make sense. (Maybe they do make sense no

> I would have thought that transatlantic routes would be sufficient to economically justify supersonic flights if they make sense. (Maybe they do make sense now). Sure if you ignore the cost of developing the airplane. There is no way in hell that its worth it otherwise. And that's why new things aren't developed. If its not the government spending billions of $ for a luxury product that has a tiny market, then nobody else will. At best this rule prevented a few more Concorde routes. But the idea that any US company would have build its own supersonics is crazy. > Another thing I believe is that noise pollution is generally underrated and that society and governments should care more about how much there is and reducing it. Yes. As 'Not Just Bikes' says, cities aren't loud, cars are loud. Noise is an underrated factor in health, specially in densely populated places.