Could things be other than we see them to be?

From "Google Glass: Artificial Unconscious?" by Neuroskeptic in Discovery Magazine (25 May 2013)

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60 years ago, Ludwig Wittgenstein famously wrote:

Where does this idea come from? It is like a pair of glasses on our nose through which we see whatever we look at. It never occurs to us to take them off.

The “idea” in this case was a particular philosophical theory about language. Wittgenstein saying that other philosophers were making use of this idea without realizing it, unconsciously – so he chose the metaphor of glasses, which are always right before us, filtering what we see, even though we’re rarely aware of them.

Read more at http://blogs.discovermagazine.com/neuroskeptic/2013/05/25/google-glass-artificial-unconscious/#.UaH1HJWCg-Z