Another good SF novel by Robert J. Sawyer. I really enjoyed this book (I read the serialized version in Analog on my Kindle), but there were a few loose ends I would have liked to have seen addressed. Nothing major at all, but some plot threads here and there seemed to be left dangling and unresolved.

Like all of Sawyer's book, this one is very though-provoking, and does a great job of exploring many of the implications of its premise, in this case, that of people having other people linked to our memories. These implications aren't only those of a personal nature, but also legal and societal implications of a shared event. If a group of people are changed by an event, what rights to the individuals involved have with regard to reversing and/or preserving the change brought about by that event? Do the desires of the many outweigh those of the few?

I also expected a little more science and exposition, especially towards the end. While I appreciate authors leaving it up to their readers to figure out what happens in their stories without excessive exposition, at times I think this story could have used a little more. Compared to Sawyer's last few novels, this one had a noticeably smaller amount of science. That's not a bad thing, necessarily, but it was something that stood out to me.

The ending actually took a turn that I wasn't fully expecting at the time, though in hindsight, it shouldn't have surprised me. I would have preferred for the events at the end to take a little more time to develop. It almost seemed as though the author was writing to a word limit rather than giving the story the room it needed to be resolved, but that could be my affinity for neatly and cleanly resolved stories.

Though my comments might suggest that I didn't like this, I want to clarify that I really enjoyed this, and couldn't wait for each installment. While not my favorite Sawyer novel (I think that title belongs to Rollback), this is still a good story with the same thought-provoking themes you would expect from Robert J. Sawyer, and I recommend it to anyone who enjoys good science fiction.