Complexity is a hydra: you chop off one head, and two more grow back in its place.
Let’s prohibit alcohol to diminish the number of drunk people on the street…now gangsters and the mafia respond to the underground ‘demand’ and establish a market provide a supply.
Let’s put antibiotics in our livestock to get rid of animal disease… now antibiotic resistant superbugs exist.
We have a hard time address responding to complex problems because we ‘default’ to linear thinking: A = B, B = C, etc. We expect direct lines between cause and effect.