He is a fraud, despite his nice magic-trick videos. Like all magic
tricks, they loose their attention when they're explained. His most
impressive video of liquid appearing to levitate out of a cup is
accomplished by gluing the cup to the surface and rotating the camera
viewing environment upside down. The liquid isn't a liquid at all,
but rather a gel.
Rather than guessing at hopeful explanations that don't exist (zero
point energy), look for simpler explanations as above; and consider
the possibility that gravity is the effect of as-of-yet-undiscovered
small particles in motion pushing the larger particles of matter that
we are aware of.