Too much nonsense about spirituality and too many tenuous attempts to make out that synaesthetes are in some way superior advanced beings.
Science is not only left out from the book, but is often looked down upon because it can't fully explain synaesthesia, yet the scientific explanations are far more rational, convincing, and plausible than the ‘synaesthete as an evolutionary leap forward' idea comes across as wishful thinking.
The book kept glancing past fascinating topics, such as the music of Billy Joel, but then moving away before anything truly interesting was discussed.
Perhaps more suitable for people who experience synaesthesia rather than those interested in the subject and the science of it.
Unusually boring.
I have greatly appreciated every other book of his but this one is a cash grab. Write another masterpiece Richard!
Fascinating stories, but the author's meandering writing style makes reading a chore.
The weakest part of the trilogy I thought.
[SPOILERS] The introduction of paranormal elements made it too different to the previous entries in the trilogy so it felt a bit off. Other than that a decent read, just not up to the standard of the previous two in the series.