No, you can't float a regular magnet above another magnet or any number of magnets, that is not stable (it can be proven mathematically). You can float a diamag

No, you can't float a regular magnet above another magnet or any number of magnets, that is not stable (it can be proven mathematically). You can float a diamagnetic material but you need at least 2 magnets, it wouldn't be stable with only one either. Note however that in the video the material is not completely floating, one corner is touching, that would be enough to stabilise a diamagnetic material for example so it's not a sufficient proof of superconductivity by itself.