The problem is not technology, but the willingness to pay for it. The average flight is only a few hours long, but costs at least a hundred dollars. Most people

The problem is not technology, but the willingness to pay for it. The average flight is only a few hours long, but costs at least a hundred dollars. Most people are willing to put up with a lot of discomfort to save a few bucks. A supersonic jet would effectively be an all-business-class service, which has been tried many times before and has always failed due to a lack of demand. The 787 optimizes for what customers want: namely, lower ticket prices.