At least 15 percent of human females possess a genetic mutation that gives them an extra (fourth) type of color photoreceptor - and this allows them to discriminate between colors that look identical to the majority of us with a mere three types of color photoreceptors.
David EaglemanOur ignorance of the cosmos is too vast to commit to atheism, and yet we know too much to commit to a particular religion. A third position, agnosticism, is often an uninteresting stance in which a person simply questions whether his traditional religious story (say, a man with a beard on a cloud) is true or not true. But with Possibilianism Iโm hoping to define a new position - one that emphasizes the exploration of new, unconsidered possibilities. Possibilianism is comfortable holding multiple ideas in mind; it is not interested in committing to any particular story.
David EaglemanNeuroscience over the next 50 years is going to introduce things that are mind-blowing.
David EaglemanWe're trapped on this very thin slice of perception ... But even at that slice of reality that we call home, we're not seeing most of what's going on.
David Eagleman