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The Limits Of Human Vision

2015.07.28 17:06 PT

Adam Hadhazy, BBC:

A million colours; single photons; galactic realms quintillions of miles distant – not bad for the blobs of jelly in our eye sockets, wired to a 1.4 kilogram sponge in our skulls.

To add a bit of context:

Our visual system is quite a remarkable design.

* Tetrachromats are people who have an extra fourth cone cell allowing them to perceive 100 million colors.