Hi Duncan, I used https://beta.openai.com/playground to ask the question regarding the name of a Mathematica holography package that works with a Raspberry Pi. Thank you for letting me know that you (from Wolfram Research) believe that there is no "ImageHologram" package, but that this name is simply a plausible-sounding AI-generated name. Looks like I may now have a name for such a package (and a nice list of things this package should be capable of doing) should I choose to write it in Mathematica. I'm pretty impressed by the details in the answer given by the AI and would like to know more about where they came from. Lots to learn. Thanks again. With bests regards, Bill