It doesn't violate the laws of physics, just of typical human aircraft engineering. The lack of visible thrust could be due to using interaction with the Earth'

It doesn't violate the laws of physics, just of typical human aircraft engineering. The lack of visible thrust could be due to using interaction with the Earth's magnetic field[1] to generate thrust, as one random example. 1: https://en.wikipedia.org/wiki/Electrodynamic_tether https://en.wikipedia.org/wiki/Electrodynamic_tether