[Grombobulous]

Given the state of our global climate that it’s orders of magnitude more important to tackle aviations fuel efficiency and emissions than figuring out how to make supersonic travel commercially viable.

You say you can’t easily travel to visit family on the other side of the country for a weekend because it takes a full day to travel, but that’s not strictly true because red eye flights exist. You can just fly during sleeping time and sleep.

It’s just not really worth it because a subsonic jet is already going so fast. It’s not like the train to plane transition where a 50 hour train ride (California Zephyr) turns into a 5 hour flight.

The longest commercial flight is about 20 hours long. Cutting off half of that, yeah, saving a day for a round trip is nice, but still a very limited benefit by comparison, especially when you consider the sleep schedule. When you remove “time you have to sleep anyway” it makes the time savings less impactful.

And as far as comfort sleeping on a plane…I guarantee you a lie flat seat on a subsonic jet is always going to cost less than an economy seat on a supersonic jet.