I'm almost done with The Three Body Problem trilogy. It has a few interesting points to it. The first book is by far the most interesting because it largely takes place in the past. The only change from the actual past is the progress of astronomy and particle physics, and a lot of the story is realistic, about what it was like for educated Chinese people during and after the cultural revolution.
The other two books are almost entirely in the future and entirely unrealistic. They're a bit unsatisfying. The general message is that the world will go through cycles of hardship causing virtue followed by prosperity causing naivete and cowardice. So that's a familiar message around here.
There are waves of global crisis and panic but the author only ever talks about how China, Russia, the EU, and US react. There are no Africans or Indians or Koreans or Pakistanis at all. There is exactly one Japanese character and one South American character. There are only two religions, Christianity and Atheism.
The political part is thin. The crisis immediately causes the countries with high technology to work together and push aside those that don't have high technology, and those that don't just become irrelevant. You don't even know if they still exist or not, it isn't discussed. They don't appear in the story again. And somehow that basic arrangement of cooperation at the top holds for four centuries without any loss of trust or any scandal.
The science part is OK, more details about physics than most. It starts with a couple of totally plausible discoveries and inventions, but quickly becomes magic when our heroes are in trouble.

Edit: I am now done with the books. They didn't get better. The last book is a downward spiral of humanity being doomed, then suddenly some bizarre and unlikely new technology is revealed to save some of humanity, then humanity is doomed again, then another deus ex machina saves a few humans, and so forth.

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