Just like you, but different
A Perpetual motion machine, which is different from a free energy device.If you google you’ll find all manner of weird and wonderous devices either real or imagined that are examples of attempts to construct a perpetual motion machine.
I’m not sure if there are rules to such things, other than once started should not stop. Most all of the devices on the net are extremely complex and involve many parts, centrifugal devices with swinging arms, strange chain driven things, things that reply on some weird notion of gravity and water.
The dream I had was of a very simple gadget, involving a couple of magnets a cog and a counter.
The counter was attached to the cog for entertainment and to show how many times the device has swung back and forth. In my dream there is no free energy created, and although there is friction between the pivot point and at the cog, there is an expectation of object at rest. There is no more energy being created than being used. In my dream this device seemed so obvious that it must have been tried before.
It was just a toy. An it’d get pretty boring after a while. I also undestand that wear and tear would make the construction doomed to failure eventually, but it’s not a free energy device, it offers nothing in return.