Is Tibet a Part of China?

I don't think there is some eternal natural right where you, I only know this and again I read this in a Protebetan book. You know that till 49, the Tibetan Theocracy, Aristocracy, on purpose prevented any development of iron factories heavy industry because they knew well the dish would bring modernization potential workers movement so every piece of metal had to be imported from China. So do you know that's the most beautiful paradox that the unity of Tibet was created through foreign intervention? Not Chinese but Mongolian. Llama is a Mongolian term and so on. That's all I say. Did you see any of these two science fiction movies which I find quite interesting asth