Well, that was a ton of fun! I think it wasn't quite as much fun as the first--not because the execution of the conceit was weaker, but because the freshness wasn't as fresh in Book 2. The instantiation of the Internet on Jupiter was, I think, an attempt to introduce something new, but it didn't quite work, because its manifestation in human reality didn't have even the absurd tenuous explanation that the other elements of the world-building had. Although, I have to admit, creating exotic matter by teaching subatomic particles exotic dancing was very nicely done. That was exactly the correct amount of zaniness there. The commentary on society was, I think, a little less playful and a little more pointed, as you would expect when the issues start encompassing fascism, genocide, and the reintroduction of slavery into a society that had banned it. I don't think that was the wrong decision, but it also contributed to a reduction of the fun relative to the first. 

Nevertheless, the rest of the book shows all the hallmarks of McCrudden's wit and wordplay--a wonderful one-liner about nominative determinism--and the way he juggles the moving pieces of plot construction is second to none. It's like watching a slow motion replay in reverse of an explosive demolition: all the bits and fragments of shrapnel start off flying in all directions, but then zwoop back into a coherent whole by the end of the book.