I hadn't heard this connection to Tom Kamifuji before, but knew of it being Regis McKenna's work. Here's an example of that exact rainbow I found after a quick

I hadn't heard this connection to Tom Kamifuji before, but knew of it being Regis McKenna's work. Here's an example of that exact rainbow I found after a quick search: https://www.flickr.com/photos/30559980@N07/37428150582 https://www.flickr.com/photos/30559980@N07/37428150582