When something is unmeasurable, it's more properly placed in the realm of "magic" or maybe "philosophy". If people have unmeasurable low self-esteem, than the

When something is unmeasurable, it's more properly placed in the realm of "magic" or maybe "philosophy". If people have unmeasurable low self-esteem, than the original theory is unfalsifiable, which means it's outside of the realm of science. Or, we can talk about reality. We can treat people like black boxes, and correlate their claims with their actions. This is called "psychology". The human mind is nowhere near opaque. http://newscenter.berkeley.edu/2011/09/22/brain-movies/ http://newscenter.berkeley.edu/2011/09/22/brain-movies/ With some work, a computer can determine the video a person is watching in an MRI. It's not perfect, but it's amazingly close. Saying "the human mind is opaque" is wishful thinking. It's magical thinking that somehow people (and thought) is different from everything else in the world. It's not. We're meat puppets.