The episode mentioned countless inventors who claimed they created free energy machines. Why don't they just leak it all online (like in 3 body problem with the nano wire)?
My uncle claimed he created a perpetual motion machine decades ago and NOTHING came of it. Now I think he was just an insane person who's machine didn't actually work... but that didn't stop patent attorneys from charging him hundreds of thousands for a patent that didn't lead anywhere... and didn't get him "disappeared"
If they actually made a feasible free energy source. And they actually do want to save the world... why don't they just drop the blueprints on several online platforms at once so people can test and build it themselves?