Trying to solve an irrational problem with a rational solution is like trying to fit a square peg into a round hole: it won’t work. Humans are square pegs that most business people try to fit into round holes. Humans are irrational, and we have been for a long time. Marketing is the industry that is most aware of this, as we wouldn’t exist without it. Still, people seem to forget this sometimes. But it’s essential to remember, both as a threat and opportunity.