The comments are very spirited and the maker of the video is quick to reply.

One commenter says:

It’s not really anti gravity. He’s just eliminating the lever force multiplication of the weight through the gyroscopic effect, shifting the effective centre of mass.

Here is wikipedia‘s articulation of the effect:

Precession is a change in the orientation of the rotational axis of a rotating body. In an appropriate reference frame it can be defined as a change in the first Euler angle, whereas the third Euler angle defines the rotation itself. In other words, the axis of rotation of a precessing body itself rotates around another axis. A motion in which the second Euler angle changes is called nutation. In physics, there are two types of precession: torque-free and torque-induced.

In astronomy, “precession” refers to any of several slow changes in an astronomical body’s rotational or orbital parameters, and especially to Earth’s precession of the equinoxes

We hope you enjoy the video and only experiement with the supervision of a professional.