Could you put your hand up if you wear glasses or contact lenses, or you've had laser refractive surgery?

And literally with only those two inputs so, the shape of your boundary condition and the pressure you can define an infinite number of lenses that cover the range of human refractive error, from minus 12 to plus eight diopters, up to four diopters of cylinder.

So the rawness, I think, in space, the fact that sustainability can actually, in the future translate into a raw space, a space that isn't decorated, a space that is not mannered in any source, but a space that might be cool in terms of its temperature, might be refractive to our desires.

These are men and women who can sense the presence of distant atolls of islands beyond the visible horizon, simply by watching the reverberation of waves across the hull of their vessel, knowing full well that every island group in the Pacific has its unique refractive pattern that can be read with the same perspicacity with which a forensic scientist would read a fingerprint.