• The illusion easily deceives the brain

    The illusion easily deceives the brain
    When eye images are obscure or ambiguous, the brain will make conjectures to try to explain what it is, according to Sun.
  • Men look far, women look close

    Men look far, women look close
    In primitive times men took on hunting, so today they looked far better, while women who were gathering, they were more outstanding in observing at close range.