And people overestimate how much someone's willing to pay in exchange of time. Even if you save 4 hours of flight (which is only a portion of the equation), you'd have to value your free time at least at $50/hour to pay even just $200 more. Some will, most won't. Europe is dominated by low cost airlines so I don't see the market for their product.
>"Either we fail or we change the world,"
Well this isn't a selfie filter, if you fail you kill lots of people.
> Well this isn't a selfie filter, if you fail you kill lots of people.
I was under the impression that by "fail" they meant "fail to create economical supersonic flight". While sending passengers to their deaths in an unsafe aircraft would also be a type of failure, I don't think that's what was implied here.
An aspiration that is very, very hard to realize.