Do you take for granted the information delivered every day via touch? You couldn’t button a shirt or tie shoelaces without touch. You couldn’t hold an egg gently or grip a pen to write. You couldn’t tell which side of the tape is sticky. You couldn’t tell if the stove was hot (until your nose smelled burning skin, that is) and you couldn’t sense a sharp edge or a splinter to avoid injury. How would you tap or scroll your smartphone without? Touchscreens depend on, yes, touch

Let’s rewind, for a moment, all the way back to the first minutes of your life on Planet Earth. Maybe you were in a hospital. You were...