I know what you're saying - I've done a few of his exercises and using the iPad app makes that very easy to do. Literally, simulates the same experience of getting the $200 edition with all the color plates. Drag a shape over another and see the effect.

Color is relative. Got it. What else does it offer?

>> The book is not supposed to be about “scientific progress”. It’s supposed to be a pedagogical tool aimed at artists. If you want a technical explanation, you are looking at the wrong book.

I understand and I wish that was the case! However, the popularity of it and its fame as a text book (see Amazon reviews) combined with his claims of explaining how brain perceives color - indicates that it is used as THE color theory reference. I have a problem with that.