But we already had the Concorde… It stopped flying due to fuel costs and limited flight paths only allowed over oceans, no super sonic flying over land. Has NASA fixed these issues?

That's what they're trying to solve, the sonic boom. The spike in the front is supposed to reduce the boom, which hopefully leads to legal supersonic overland travel.

However, time and time again, the market showed that people value the price tag over anything else. The Concorde didn't make it, the A380 isn't looking good. Anything with a high operational cost doesn't seem like it would last, especially with push for greener tech.

hopefully leads to legal supersonic overland travel

Ah, yes, hopefully! I’m super happy that they’ll be barely below the legal tolerance to be able to let the super rich travel even faster

yeah i experienced a sonic boom once, obama came to seattle and a small private plane accidentally entered the restricted airspace, that was one too many. even if its lessend its not gonna be pleasant to be under.

They’re promising a perceived 75 dB level, equivalent to the volume of a dishwasher. Sonic booms are normally about 110 dB or about a jackhammer or a rock concert

And it’s not like you’d hear it all the time, just once in a while and only if you’re in the flight path.

will it reduce the air pressure difference on the ground? i was in a building and it moved. i felt it. sound is only one problem.

Overpressure
Sonic booms are measured in pounds per square foot
of overpressure. This is the amount of the increase
over the normal atmospheric pressure which surrounds
us (2,116 psf/14.7 psi).
At one pound overpressure, no damage to structures
would be expected.
Overpressures of 1 to 2 pounds are produced by
supersonic aircraft flying at normal operating altitudes. Some public reaction could be expected between 1.5 and 2 pounds.
Rare minor damage may occur with 2 to 5 pounds
overpressure.
As overpressure increases, the likelihood of structural
damage and stronger public reaction also increases.
Tests, however, have shown that structures in good
condition have been undamaged by overpressures of
up to 11 pounds.
Sonic booms produced by aircraft flying supersonic at
altitudes of less than 100 feet, creating between 20 and
144 pounds overpressure, have been experienced by
humans without injury.
Damage to eardrums can be expected when overpressures reach 720 pounds. Overpressures of 2160
pounds would have to be generated to produce lung
damage.

https://www.nasa.gov/centers/dryden/pdf/120274main_FS-016-DFRC.pdf