A rabbit hole, somewhat related to free energy that I have also been going down is the "electric universe" theory also known as "plasma cosmology". It states that electricity is the true driving force of the universe. Stars are powered by interconnected electric currents and planetary surface features like the canyons on Mars were formed by interplanetary super-lightening.
Apparently, the elites want to keep this buried because this also enables free energy since everything is connected via electrically charged particles.
Here is a great paper on why gravity is actually just electromagnetism and that the forces of the cosmos are no different than the electromagnetic forces found in atoms and molecules. It covers some holes found in mainstream theory of gravity such as the orbits of some comets.
https://www.varchive.org/ce/cosmos.htm