On work, is a table doing work holding stuff up off the floor? According to one view, no. According to another view, yes. The weight on the table is causing strain throughout the structure, but it is also not moving so it is not causing heat buildup (that we can feel), however, at any moment, you may find the table bursts into pieces and the stuff is now on the floor.

On magnets, the field is not static. Tesla said that his discovery of the rotating magnetic field is his most important ever.

Our problem is that we like to make things balanced, so much so that we don't really have good ideas of imbalance, or a continuous imbalance. This is the secret to magnet motors and later, free-energy devices. Today, the magnet motors are perpetual motion machines, little anomalies. They continue to spin years later.

If i create a magnet motor, i will only tell people about it after i get useful work out of it, and then i will tell EVERYONE how to build it as fast as possible.