The first video is over my head.
I don’t find this intuitively satisfying. The thing is, quite a bit of the math you guys use all the time was developed by “philosophers.” There is actually no such thing as a circle. A circle is a concept.
Positive and negative are not arbitrary for electricians. A circuit is a cycle but it is not a circle.
The second video is important. It captures the reversibility of flow. If we look deeper into the chemistry of the parts involved in motors/generators, there will be characteristics that share modalities. These structures interact within a field, just as equations represent inverse relationships. If you read about transistors you will find the concept of doping quite intriguing. I suspect that without this ‘barrier,’ compressors won’t work. The transistor creates a buffer in the flow which ‘charges’ the event. There is more energy present in that period.
Now, I am not correcting anyone. I am making conjectures so that I can reveal my hand. I want to stop here. Tell me where I am wrong.