Well that's bad logic. 99% of average people probably can't tell you the underlying principle that causes a lightbulb to go on when you flip the room switch. If you asked the average person, how many would say, "Closing the switch completes a circuit between the lightbulb and the power company?" That doesn't mean electrical engineering is false. It just means that 99% of the people don't understand the technical details of the world around them. And why should they? I like to drive my car but I'd be hard-pressed to explain the workings of a modern computer-controlled fuel injection system. You can't find a number that's between .999... and 1.