Time and space and location are only realities to us in so far that we can see them.

A human being born blind, dumb, deaf, and without feeling would still, I suppose, be a human being, because it would be conscious of existence; it would breathe and know that its heart was beating, but without sight or sensation there could be no idea of space--time, to it, would be a meaningless series of breaths or heartbeats.

Without touch or sight it could have no idea of form or size, which are merely conditions of space, and both the past and the future would be absolutely non-existent for it." He paused, and walked on a little way in silence, arguing silently with himself as to the correctness of these premises.

Then he began aloud again: "Yes, I think that's about right.

And now, suppose that such a being became endowed with the natural senses, one by one.