Thank you. Very useful. Too many of these discussions lose sight of the physical when following the math, and others leave out the math either to reach an audience that won’t understand, or because the authors don’t understand what the relationships really are. I think we are on the verge of some breakthroughs in understanding gravity and physics that can change the entire perspective of humanity (if they see the light of day). What would humans do to the planet with unlimited energy? To each other? Truly understanding gravity is the key to unlock the last mysteries of matter and energy.