I don’t think you understood.
No FTL, ever, is the basis of Three Body Problem. It is a series of award winning Chinese science fiction novels. Recently filmed in corrupted form by Netflix.
I have two Masters degrees, courtesy of the USAF. Ionospheric plasma physics and an MBA. Not really relevant to the Chinese novelist, so dunno why you asked.
Yeah I read all 4 of the Chinese novels - but you missed a lot reading only the first ... apparently. And yes there was FTL in the series, in case you missed it.
Ionospheric plasma physics
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Is not theoretical physics or cosmology.
PS: there is another version of TBP, not corrupt, made by TenCent.