the vast majority of us are trichromats, meaning that we perceive thousands of different colors by the combined activity in just three types of color-sensitive neurons. But some lucky individuals have a mutation that gives them a fourth type of color sensor, and even though they may not be aware of their mutant gift, they are more likely to have careers as artists or designers. The most important lesson here, though, is that our senses constrain our experience by offering us a relatively thin slice of what’s out there—a highly filtered version of our environment.
