Ah, Shusterman. This COULD have been 5 stars, but alas. You messed it up. Congratulations. (view spoiler)[First problem: love triangle. Seriously? I just wanna say that I did NOT sign up for this. Second, Grace does not feel low-cortical at all. Other than the fact that people describe her as vague, she's the smartest friggin' person in the whole group! And it's not even like an autistic savant or anything. She's just smart, so don't make her low-cortical! (hide spoiler)] But despite those two problems, you still get 4 stars. Why? Because I can't imagine rating this trilogy anything lower than 4 stars. Duh. But also, the ending. (view spoiler)[Proactive Citizenry is so smart. Funding both ads promoting unwinding of teens AND ads against unwinding of teens but for unwinding of adults? Goshdarn it, PC. Also, I honestly didn't know what Sonia and Janson's device would be, but that was smart. (hide spoiler)] I never said Shusterman was bad at plot twists! 
 But Bach etude for piano? Really? I don't think so.