Secondly, it is indeed confirmed that Tima is the mother of all things. If you don't agree with the description in Chapter 7 that "As long as humans are immortal, Tima will never die", then you can read the new setting collection FGOM4, which clearly states that Tima is the "Genesis", and her privileges are for all mankind (Lilith BB is very calm), and her exile is also the fault of the restraining power of all mankind. So if you still insist that it is just Sumer, then there is nothing to say.
Or you can understand it this way, Genesis does exist, and there is such a mother of all things, who had no name at first, but Sumer came out early and gave her the name Tiamat, defining her as their own mother goddess. Everyone understands Type-Moon's style, the ancients really can do whatever they want.
Regarding the question of whether civilization is 4,000 or 5,000 years old, I have written very clearly that the historical community determines civilization based on four points: (1) the existence of a systematic writing system; (2) the existence of bronze ware (including production tools and weapons); (3) the existence of cities; (4) the existence of temples (large religious buildings). If it does not meet the requirements, it is not a civilization, but a culture, so don't use "Liangzhu" as an excuse (if Liangzhu could really be used as direct evidence, CCTV would have promoted it extensively, not just ordinary reports). Compare it with the above standards yourself. I have also said that you should not rush to criticize others for smuggling, because history requires evidence. Again, don't rush, and discuss rationally.
The saying of about five thousand years is a domestic saying rather than an international academic one. It is not applicable to the standards of archaeology and history. How one views it depends on one's own opinion.
As for why I wrote so much? I can only say that I couldn't stop writing. After all, everyone wants their country and history to be the best, but we still have to face the reality. Blind arrogance will not only not make us awesome, but also make outsiders laugh. Finally, I wish everyone a happy April Fool's Day.