You and I See Different Things When We Look At This Holographic Display
Extramission theory was the idea that eyes work by emitting some kind of beam, sort of like visual echolocation. That is, of course, complete nonsense, but its supporters included smart people like Plato and Euclid. There are many reasons we know that extramission theory is incorrect, including that this strange two-way holographic display couldn’t work if that’s how eyesight functioned.
Julius Curt built this display as one part of a larger project, which is a two-player game that challenges players to relay information to each other. Each player needs to see information that the other can’t and this display handles that in a really fun way.
The display looks like a block of glass in a plastic frame. Inside the glass, you will see floating pixels forming an alphanumeric character or pictograph of some sort. You can also look through the glass like a window to see things on the...
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