You don’t have to agree with anything I said but I’m not here to be your research assistant, I gave you my thoughts and some paths to references. It’s evident by this debate nobody is certain on anything and were hypothesizing. If you want a mathematical proof before you can grasp concept of gravity, or form any opinion of your own, I can’t help you.
I do not think it's unreasonable to request a single example, statistic, or attributable fact.