[bitJericho]

A hologram is literally 3d information encoded in 2d surface. It's actually mind-boggling technology.

https://en.wikipedia.org/wiki/Holography

If you cut a hologram (a real hologram), no matter how you cut it it still shows the whole image, just smaller.

[chton]

Indeed, it's amazing tech. It's even better than you think: size of the image is dependent on projection, not size of the medium. If you cut it it will show the same size as before, but with lower resolution. That is one of the things that blows my mind every time: the less data points there are, the less precise it is, but it's all still complete.

[kamaal]

Just asking out of curiosity. In general is it mathematically possible to encode N-dimensional information in a N-1 dimension surface.

Is this true for N=2?

[bitJericho]

Of course. That's how we're able to play 3d games on a 3d screen ;)