Amazing worldbuilding. I'm a fan of Emily Short's "Counterfeit Monkey" interactive fiction game and this one feels like being set in a very similar universe.

Even though I'm almost over sci-fi which isn't hard sci-fi, this book is rigorous about the rules and there is only one deus ex moment here, but it was foreshadowed many times.

I love how Thursday's dad always ends his appearances with the same lame catchphrase even when he talks to her times in a row. It makes sense because in his timeline a lot more time passes.

This book handles time travel really well and plots a hook for the continuation of the series quite well. Or should I say... Hides it behind a wheel?

As usual, ending the review with the quote of the book:

My brother had fucked up. Nobody had bothered to put it so simply before; the military tribunal spoke of “tactical errors in the heat of the battle” and “gross incompetence.” Somehow “fucked up” made it seem more believable; we all make mistakes at some time in our lives, some more than others. It is only when the cost is counted in human lives that people really take notice.