Why assume "cramped overture"? What if overture feels like first class but is ~faster?
I suspect fast planes are going to have an enormous amount of demand - people value their time. What's the most important part of travel? The flight cost? The lodging? The days off of work?
If people value their time how come there was no serious appetite for upgrading and eventually replacing Concorde decades ago?
After all they could have just built improved versions of them and had fleets of them flying across the Atlantic, perhaps even a larger extended range version for trans-Pacific routes.
And if time is really the driver how come Boom Overture is going to be slower than Concorde?
Because nobody did it! Airlines are absolutely brutal businesses. Airplane manufacturing is at least as brutal. Trivia question: how long did it take the Boeing _ (pick any make) to become profitable?
It's an enormous risk to build a new airplane, to convince airlines to take a risk on you and buy it, for them to train pilots on it, etc etc etc
It's a small miracle Boom has gotten as far as they have.
Boom is not competing with Concorde!! You can't buy Concorde tickets today! Concorde was never profitable!
I suspect fast planes are going to have an enormous amount of demand - people value their time. What's the most important part of travel? The flight cost? The lodging? The days off of work?