Solid book, Metzinger is really underrated

Yes and no: good science fiction takes a trend and extrapolates. Extrapolation should be based on logic (to be good - but you can also just aim for entertaining and go wild).

The details might differ, but it's worth thinking about whether the implications make sense. Watt's certainly asks a lot of good questions which other orders have also asked - i.e. Accelerando[1] is very interested in the idea of "what happens to mankind when economic systems can no longer be participated in by recognizably human minds?" - taken out to the limits of known physics.

[1] https://www.antipope.org/charlie/blog-static/fiction/acceler...

^^^ You read the full-text here, I highly recommend it.

Of course it doesn't, but it is a thought experimented presented as a novel.