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Hopefully, in 100 years time, people will be wondering what the hell people were doing in 2019, eating wild bats.

The position of the hip ball and socket is a lot further forward than it looks with the flesh on. The weight will go through that joint, so that's the balance point. It looks more balanced, if you view the hip joint as the balance point.

Center of mass in the hips, according to the study reported here https://www.dailymail.co.uk/sciencetech/article-6368865/T-Rex-turn-like-figure-skater-hell-far-agile-thought.html

I note in your classification tree article the Michael Benson is mentioned, His book is fascinating. From it I learned that not only was the mass extinction of the dinosaurs not the worst mass extinction in Earth's history, but that the previous inhabitants that were wiped out in the biggest mass extinction (at the end of the Permian) were every bit as big, dominant and successful as the dinosaurs. They are called dicynodonts. https://en.wikipedia.org/wiki/Dicynodont These were often confused/ mixed up with the dinosaurs in classification schemes although they lived (and died) 60 million years before the first dinosaurs. Not also that genealogy tracing is very difficult for all these as we only have a few samples of DNA so most trees are classification schemes, rather than acestry diagrams. As such they are constantly being revised as new data appears.

Whether someone is a terrorist or not depends on one's point of view. For one side someone is a terrorist, for the other a hero. And vice versa. In ancient times the word barbarian was used instead of terrorist. It is just such a word to disgust the other side and frighten the nation. ..and what do Israeli soldiers/terrorists say to their mothers when they return home? Exactly the same.. Watch some early American western (prior political correctness) and you will also see an American version of this, but with Indians instead. The Israelis have been displacing Palestinians over and over again and populating the new lands with Israeli settlers. Just as the US has been resettling Indians. But the US has enough land, unlike the Middle East. Do you have any idea how dense is Gaza Strip? 6500 people/km2 (London 5700). They were pushed into a "camp" there by Israeli settlers, and the soldiers working for them, and the entire apparatus ("government"). Now imagine what happens if you start firing rockets (real rockets, not home-made crap) into such densely populated area.. ...actually something like "I avenged the death of our father, grandfather, mother, grandmother, child" etc.

The gravitational field itself is a source of gravity. IE Gravity gravitates or is self coupling.

You go with observations where they can be made. Where they cannot, you go with the predictive aspects of existing theory. Unfortunately classical GR fails at very small separations and hi energies, making infinite predictions. These same infinities appear again when trying to quantize the gravitational field, mostly as a result of gravity itself gravitating, and they cannot be eliminated by the traditional method of renormalization which has worked for QED and QCD previously. Other approaches have been tried, and while SuperString theory seems to be a dead end, Loop Quantum Gravity still shows some promise. As to when we'll have a workable quantum Gravity theory, it's anyone's guess, but unless AI becomes self thinking/learning instead of simply offering the 'best fiit' answer from a multitude of stored responses, it certainly will not be provided by AI.

Seems that was a silly thought... Looking on "archosaurs" at Wikipedia (https://en.wikipedia.org/wiki/Archosaur) now...

Not subtle, just wrong. It shouldn't be there. Right now, what's the speed of your nose with respect to something I'm thinking of, but I'm not gonna tell you? See? That's your v. And this is a serious no, no. I hope you understand. If you don't, I can't help you, and I'd venture nobody else here can.