[eric_h]

I flew on the Concorde once. I didn't hear any sonic booms ;)

[josu]

I don't think you can hear the sonic boom when you are traveling above the speed of sound. I think that the sonic boom is only experienced by a stationary object observing the event.

[JetSpiegel]

That's the joke.

Startup idea: accelerate paying customers on the ground to Mach 1 to make the sonic boom go away.