premise: , <hypo>. The real issue is congestion on the highways which lead to slow commute times, so what is needed is not cheaper forms of transportation, rather ways to reduce traffic congestion.
hypothesis: <hypo> should be "this would still not solve the commute issue as how do people utilize the airplanes, where do they take off and land, how do you manage the air traffic, how do you train them to fly, etc"