We have the same gas mileage (fuel per seat mile) as a lay-flat bed in business class. Since the aircraft can do nearly 3X as many trips in the same time, on net it's better.

That's just the start of course—with more innovation on fuel efficiency the price and emissions both come down.

$5,000 is what a business class ticket NY/London costs today, and many business travelers are able to do that routinely. This compares to up to $20k on Concorde.

We will get the $5,000 way down over time—this is just the start.