All good points. Thanks for that answer! Maybe it's possible to make a device that shows a single point of the color perception space of the human eye, but coul

All good points. Thanks for that answer! Maybe it's possible to make a device that shows a single point of the color perception space of the human eye, but could show all the points? I'm thinking lots of monochromatic sources and optical mixing. The you could at least pick a point at a time of CIE 1931 and look at it.