What do people who own social media platforms gain from it and how? Where do they get the revenue from? I know that ads make up some part of it but is the revenue generated from ads enough?

I'm new to scifi books, and books in general. (only got into reading 3 years ago) I've read dune, the dispossessed , a fire upon the deep and the stars my destination. I'm currently reading the left hand of darkness . What should i read next? Suggest me some of your must-reads.

I'm gonna review the book and also I have a couple of questions about the ending. I liked the book and rate it 4.5 out of 5 stars.

In this book, the galaxy is divided into 4 zones based on the intelligence of the creatures that live and the level of technology that works in each zone.

A group of scientists from straumli realm go to the outermost zone, the transcend and accidentally awaken an ancient power that wreaks havoc in the galaxy. A family of four escape with the countermeasure to the tines world in the lower beyond the zone before transcend. The tines world is inhabited by dog like creatures that work in packs of 4-6. A group of dogs is considered an individual and a single dog is considered a member. The parents are killed and the kids are trapped along with the countermeasure.

A rescue team consisting of humans as well as aliens is traveling to the tines world to retrieve the countermeasure and rescue the kids.

what really happend at the end? What did pham do? Is the galaxy now just the unthinking depths and a massive slow zone? Is the perversion even eradicated ? If not what was the point of doing whatever they did?