You claim to be a "Software Systesm Architect". I've worked with many who have that title in professional roles. In a workplace if I was contracted to come help you out, you would be fired for not recognising when someone qualified tells you some physical facts that are high school physics, and you claim them to be wrong. But you are the one doing the firing, isolating yourself from the expert working for you, for free, telling you these basic physical facts. I admit your words triggered me at first, but then I realised you are blocking yourself. Now you will waste no more of my time or energy working for you for free. So I thank you. Thankyou Doug, for relieving me of the need to keep working for you, for free, wasting my time and energy. Goodbye.