I's eyes

You. Me. You see it your way. I see it mine. We simply can't see through each other's eyes.

At least that's the conventional wisdom.

But!

Let's not accept it. Let's assume that you really could see what the world looked like to someone else. Perhaps it's a close friend, a partner or a spouse. Try it. (You don't have to imagine how their world looks, just imagine that you've seen it.) Got it? Good. Done.

Now, (and this is the interesting part) how would you verify to them that you had done it successfully?