[LiteKeeper]

All happening by chance?

[muawiyah]

Yup ~ if they don't work right your eyes will go out of whack ~ you'll be blind in the mid-day Sun and a saber toothed tiger will eat you unless you move far to the North beyond their sharp claws.

At the same time you'll get around at night, albeit in black and white, just like it was daylight.

Lots of folks discover this phenomenon shortly after cataract surgery. It takes the visual cortex a fair amount of time to adjust to the increased light levels.

We're just big ol wet machines.