I once got in a huge debate with a physics major when I told him that frictionless bearings can exist. He told me there never has been frictionless bearings, were no frictionless bearings now and never would be any frictionless bearings. I told him I could prove him wrong with one word: maglev. He didn't have an answer to that.
Funny, I'm not a physics major and my response would be that a bearing in this case is defined as "an object, surface, or point that supports" and that a magnetic field can not be described as "an object, surface, or point", and that therefor you have not described a "frictionless bearing" but rather a "frictionless field".
Why am I not surprised that a physics student would not know what eddy currents are. Not that there aren't some mind roastingly smart physics students. It's just that the fashion of the day is to obsess over 11 dimensional math rather than experimental researches.
This one time I had a conversation with my imaginary friend and he said it was impossible for a mobius strip to roll correctly and I just said "oh yeah? Well what about shredded wheats?"
The coolest thing about flying around in a vehicle that floats around on a giant block of frozen liquid nitrogen over magnets would be the trail of billowing mist left behind you.