You Are Not So Smart: Why You Have Too Many Friends on Facebook, Why Your Memory Is Mostly Fiction, and 46 Other Ways You're Deluding Yourself

by David McRaney

Since the early 1900s, psychologists have wrestled with the conundrum of how, at a certain level, subjective experience can’t be shared. For instance, what does red look like? What do tomatoes smell like? When you stub your toe, what does it feel like? What would you say if you had to explain any of these to someone who had never experienced them? How would you describe red to a person blind from birth or the scent of a fresh tomato to someone who had never smelled before? These are qualia, the deepest you can tunnel down into your experience before you hit rock. Most everyone has seen red but can’t explain what it is like to do so. Your explanations of experience can build up from qualia but can’t go any lower. These are the ineffable building blocks of consciousness. You can explain them only in relation to other experiences, but you can never completely describe the experience of qualia to another person, or yourself.