>>2033584No, it doesn't.
They're simply using high altitude + a computer that limits them to supersonic flight in a VERY limited speed envelope so the boom wont reach the ground.
Which in practice limits them to a MAX speed of about Mach 1.3, only ~20-30% faster than high speed subsonic passenger flights that are already a thing, and they have to sacrifice a bunch more fuel for that 20-30% additional speed.
Meaning in a REAL WORLD transatlantic flight, you MIGHT save ~90 minutes.
There is never going to be any real use to this technology, it's simply not a big enough leap forward for existing airlines to bother and the time savings and fuel savings margins would be minimal enough any new airline would struggle to find an audience to pay for the flights.