I was taking a glass of cool refreshing water up to the office with me when a thought struck, "Water isn't clear."
The musing began thus:
Isn't it odd that water is so essential to life, the one liquid we most need, and it happens to be clear.
I wonder if anyone has thought about this before.
Wait, maybe it isn't clear. Maybe it just looks clear because being the liquid we evolved in it is both necessary and our light perception system (eyes and brain) filter out the distortions in water.
Our eyes and brains evolved in a medium of water and so the eyesight that evolved is one that manages the water distortions to such a degree that they virtually vanish...
So, that is what happened in my head on the way up from the kitchen.
Cool, now what do you think?
J. Sweeney
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