Boeing X-51A WaveRider Sets Record

[MonsterMoshi]

Super sonic to hypersonic, is there some different barrier that I am unaware of, bar the actual speed being a bit faster, is there any physical difference in super to hyper?

-edit
Also you mention concord, which nearly 45 years ago flew at mach2.
Now 45 years later, no passenger planes at all do such a thing, there is no supersonic travel for the worlds population, simply military.

We don't have supersonic travel for civilians due to the immense cost of it
Concord was far to expensive for most people to travel regularly especially back then. It was more of an experience than a means of getting around for most.
It just isn't economically viable anymore. Most people just want to get where they want to get for a little cost as possible

As said before, twice the speed, four times the resistance, four times the energy required to get the those speeds, four times the fuel, and probably a hell of a lot more than four times the cost