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This discussion is rather fascinating. I used to think that all reality as perceived by the nervous system was real reality. Since everyone in class will say that we are taking Bio 202 class at Bryn Mawr, the real reality seems to be that we are taking Bio 202 (I guess this falls into the collective reality that Molly was explaining above). However, not all “realities” are real.

The colorblind cannot see red numbers in green backgrounds and vice versa (I’m referring to those colorblind tests with the green and red splotches that form numbers). Their reality says there’s no number in the picture, while others' realities do consists of numbers being in the picture. Which is the real reality and which is the fake one?

It’s a challenge to separate real reality from fake reality. I don’t think we don’t have the ability to differentiate them. Perhaps everything presented to us by our nervous system is a fake reality. Perhaps we're not really taking bio 202. This notion may seem farfetched, but there’s no way to prove or disprove it.