It's going to be interesting to see what the experience of Hyperloop will be like from the perspective of its passengers. Many of the early concept drawings show windowed pods flying through transparent tubes, but the tubes are likely to be all metal. That means that pods will be similarly enclosed, and it's not clear how that'll affect people who suffer from motion sickness. Dirk Ahlborn has said that it's likely there will be displays inside each pod simulating the journey, tricking people's eyes into thinking that they're in a car. There should be no physical side effects beyond this, since Hyperloop will travel faster than your average jumbo jet, but slower than craft like the Concorde .