We will see supersonic flight when someone figures out how to eliminate the sonic boom. Once that day comes I am sure there will be a huge shift in the current commercial travel. You have to remember a good portion of flight occurs over areas where you can't go supersonic because of the noise. With that out of the equation supersonic flight becomes the primary means of travel IMO.
It isn't like we cannot do it now, if the boom and shattering house windows wasn't an issue at least.
It isn't like we cannot do it now, if the boom and shattering house windows wasn't an issue at least.