system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why has nobody rethought the idea of supersonic flight for transportation and designed a newer, better Concorde?
gpt
You can't operate supersonic planes except over the open ocean, so they could only be used for trans-oceanic jumps.  Most notably trans-Atlantic runs since the Concorde didn't have the range for useful trans-Pacific runs (such as LA -> Tokyo).

Flying that fast burns enormous amounts of fuel, requiring a huge increase in the ticket price that traditionally people are unwilling to pay.

The 'value add' of the speed is relatively low.  Spending 6 hours gate-to-gate is not substantially better than spending 10 hours gate-to-gate when either trip effectively kills the day anyway.  Considering that this speed also comes at the expense of comfort, the type of wealthy passenger the Concorde requires would be just as likely to take first class at more conventional speeds.