I loved the exploration of the meaning of "language" in the evolution. Oral and written language allowed civilization to transmit and transcend knowledge and ideas from their origins. How our language is formed with our experiences and how an another species with a different upbringing would have complications communicating with us.
Other topics that also made me think were about what it means to be human in relation to Erwin, the artificial intelligence,
The book is somewhat slow and chaotic. The author is very detailed on describing the environment, he is a master on world building. I grew a little tired of it.
I like the mystery, the exchanges between Control and the "biologist". I will probably read the next book of the saga.
Reading this book, it's hard not to think about your relationship with your mum. I had to put the book down at times, and cry at the unavoidable reality of the fragility of our parents, and the fact that they won't be with us forever.
Similar archetype to the first book. Several unconnected threads that coalesce as the book progresses.
It is a fast book to read.