I'm disheartened there's no mention of carbon footprint or sustainability. With all the great focus in our community on sustainable land transport (Tesla), data

I'm disheartened there's no mention of carbon footprint or sustainability. With all the great focus in our community on sustainable land transport (Tesla), data centers, solar and neo-nuclear power, etc., here we have a startup that markets this: "imagine leaving New York in the morning, making afternoon meetings in London, and being home to tuck your kids into bed." That is a terrible thing to enable from an environmental impact standpoint. While air travel can be somewhat more efficient per mile than driving alone in a gas car[1], the distances it enables you to travel are vastly greater. Further upping the convenience factor would no doubt encourage more "binge flying". Perhaps Boom is more efficient than typical airplanes. Perhaps it's less efficient. Perhaps it could make planes that travel at the same speed but at half the carbon footprint. We wouldn't know from this. It's not part of the story. Let's change that. Let's make sustainability as important a consideration with airplanes as it is with cars. [1] http://www.yaleclimateconnections.org/2015/09/evolving-climate-math-of-flying-vs-driving/ http://www.yaleclimateconnections.org/2015/09/evolving-clima...