[reaperducer]

I wonder how much larger the population of people is today (vs Concorde's era) that are willing to pay for these supersonic ticket prices. 3x? 10x?

At least.

Even if you think price is a barrier, think about how many more millionaires and billionaires there are in America and Europe today than there were just 20 years ago.

Tack on our society's rediscovered fascination with conspicuous consumption ("influencers"), and I don't think filling seats will be the problem today that it once was.