The idea that there’s a pilot wave accompanying every particle isn’t new. Louis de Broglie made this suggestion back in 1929. He did this in order to get around the bizarre idea that particles can interfere with themselves by going through two openings at the same time.
The main difference between de Broglie’s pilot wave theory and the mechanism outlined in this book is that de Broglie never gave an explanation as to what the pilot wave might consist of. Instead of an aether, he invoked a mysterious hidden variable.