I was driving on the Mumbai-Pune Expressway some time back with my family. My 8 yr old had a bunch of curious questions, as usual. While providing a long drawn answer I caught myself using the phrase “false positive”. After a while, I was the only person left awake in the car (btw, no prizes for guessing how they all fell asleep). I started thinking to myself how do I explain the concept of a “false positive” in such a way that my daughter could understand it. Hmm. Then I had a Eureka moment. The boy who cried Wolf! It…