With passenger jets and hyperloops we’re talking transport systems that have remarkable similarities. They are both cylindrical-shaped, offer low drag transit close to the speed of sound, and they make use of low air pressure. Hyperloop will use up a lot of energy to create and keep a near-vacuum, the passenger jet climbs to a 9–10 km altitude, where there is much more space to begin with and to reduce drag. Of course, the jet can do without an outrageously costly infrastructure.