We have all kinds of limitations as human beings. I mean we can't see the whole electromagnetic spectrum, we can't see the very small, we can't see the very far. So we compensate for these short comings with technological scaffoldings. The microscope allows us to extend our vision into the microsphere. The telescope allows us to extend our vision into the macrosphere, the Hubble Space Telescope extends our optic nerve into space, and it allows us to mainline space and time through our optic nerve.