This is the 'second part' to the Pulitzer-prize winning 'A visit from the goon squad' and like all sequels - it is not as good as the original. It happens, mostly, 30 years in the future, and main protagonists are the children of the protagonists in the first book and some side characters. This also gives Egan a chance to throw some science fiction in the mix, including the mandatory AI hate, but it doesn't work all that well.
There are a bunch of stories, with characters appearing in several and connecting them, mostly about families of the characters from the previous book. The first one with the invention of the Mandala Cube consciousness upload machine is a little far fetched and Egan chooses it as a connecting thread through most of the stories, the Cube being a literary device for hearing character's thoughts (one critic long ago said "characters don't walk around speaking their thoughts" - well in this book, they do!).
The two stories that stayed with me were about the recovering heroin addict, Lou Kline's daughter with the anthropologist (that they went on an Africa trip in the previous book), since it is very genuine and seems like it is drawn from real life; and also the Citizen Agent story about Lulu, which can be sordid at times, but it is quite powerful and knowing that initially was released on Twitter (Yes, X for you, Musk!) in continuation, it makes it even stronger. Def better than the PowerPoint chapter in the previous book.
Also the guy who yells in public to elicit authentic responses is pretty cool and the Counter story is kind of ok, but predictable. Overall, the stories are not of the same high quality as the previous book, but they are interesting in their own right and are kind of a closure to the previous stories. Worth the time to read, especially with Egan's supremely flowing style.