Well, I read it, so I may as well blog it. If that sounds unenthusiastic, then yes, I am. It is a book, in case you haven’t realised; inevitably it has a wiki page so I won’t summarise it here or even tell you the author. It gets less and less plausible as it goes along, though is fun enough in a space-opera sort of way. Alas, it shares a problem all too common in sci-fi: raising a sense of mystery, and producing interesting puzzles, is far easier than providing an interesting and satisfying solution to such a puzzle. Anathem fails in that way, though it is a better book.
In fact the only reason I’m writing this is to ask if *anyone* has written a decent sci-fi novel which sticks within the known laws of physics (no FTL, no anti gravity, etc) and manages to get civilisation across the galaxy.