Are manufacturer AC cables good enough?

No that was fake. The line, One small step for man, one giant leap for mankind, was the idea of Stanley Kubrick’s wife. It was spoken by Neil Armstrong on the unused set of 2001 A Space Odyssey while filming the lunar landing sequences. 

I think Nixon called some guy in a gas station in Utah.

Bebe Rebozo  🤥

Tricky Dick. Funny,  Bill Clinton shares the same nickname!

Never said gravity couldn't be explained.     The amount of gravity, throughout this universe, has not yet been explained.      I cited a number of the theoretical attempts at an explanation.     Jones brought up Einstein's Cosmological Constant.     I mentioned it sought to account for the amount of gravity, throughout this universe.      He added that, in his Math, believing in a stationary universe, in keeping with that time's understanding of Physics.    Anyone, with even a minimal grasp of Einstein's General Relativity, would have understood that point.