Head On

Tons of fun, and completely effortless read now that I know the world from Book 1. But Lock In isn't required reading - Scalzi includes enough background and catches new readers up on the world of Haden's Syndrome.

This rests on a pretty standard police procedural framework - and that story is intriguing and generally well-told. There are multiple times when things are a little too convenient for Chris - imagine the luck of living with a ready panel of experts on all the elements of the case! It's unrealistic, but it also avoids rabbit holes exploring tedious FBI process and introducing a bunch of characters we don't care about.

But anyway, for me the investigation is just the required foundation for:
1.) great interplay between characters (Vann is just the best)
2.) speculation about everything from VR and wearable tech to post-gender culture.
3.) Scalzi setting up a parameter then playing with the idea right to its limits. I found the idea of near-teleportation fascinating, for instance.
4.) And of course, there are themes regarding disability, healthcare, economics, cultural identity, and discrimination. All woven neatly into an entertaining narrative.

(There's also a terrible/wonderful throwaway joke late in the book, that plays with the title. I groaned and laughed in equal measure! Won't spoil it - just go read this!)