Secret Wisdom about Digestion

Did you know...every cell in the body has vast intelligence in it?  People in many ancient cultures eat with their hands.  When the fingertips come into contact with food, the body immediately recognizes the chemical makeup of that food, and starts producing the right enzymes to digest it, even before the food reaches the lips.  How's that for cool?  Do you think we can read with our fingertips too? :)  Anyone is welcome to comment...