This seems like a really interesting development. This seems like an interesting way of overcoming EV range anxiety. Hopefully battery technology will continue to evolve but maybe cars that can regenerate their batteries by driving might be part of the future too.
The basic idea is that there is no free source of energy. Anyone who tries to sell you on the idea of free motion or work being done is trying to scam you.
Or they have science so advanced it seems like magic to you. But that’s an unlikely scenario :)