David Hawthorne Posted over 3 years ago Can we ever know how another person "senses" the world? In some measure, you don't need to know --or rather-- it doesn't matter if you know, it simply matters how you act (react/respond) to the 'blue' you see. The role sense play are largely informational, played out in propreoception. Do I say 'blue' when I see 'blue'? Do I reach out and pick up the 'blue glass' without knocking it over? It matters that most of us know to stop when the traffic light turns red, but that behavior might have almost nothing to do with 'color' at a specific wavelength. When perception is translated into action, it has meaning.culturally. Do the thoughts we 'keep' to ourselves, mean anything? Are they effectively meaningful if not accompanied by some interaction with the external environment?