Because your brain uses information from the areas around the blind spot to make a reasonable guess about what the blind spot would see if only it weren't blind, and then your brain fills in the scene with this information. That's right, it invents things, creates things, makes stuff up! It doesn't consult you about this, doesn't seek your approval. It just makes its best guess about the nature of the missing information and proceeds to fill in the scene.
Daniel GilbertResearch suggests that people are typically unaware of the reasons why they are doing what they are doing, but when asked for a reason, they readily supply one.
Daniel GilbertWhatโs so curious about human beings is that we can look deeply into the future, foresee disaster, and still do nothing in the present to stop it. The majority of people on this planet, theyโre overwhelmed with concerns about their immediate well being.
Daniel GilbertMy friends tell me that I have a tendency to point out problems without offering solutions, but they never tell me what I should do about it.
Daniel Gilbert