Originally Posted by
Pesky Monkey
If he doesn't know what the machine is, then he is ignorant. It doesn't mean he' an idiot. I don't think anybody here says he was.
So how much does he need to know about the machines in order to not be called "ignorant"? He knows that it's a machine that checks for hidden objects. Does he need to know how the software reads the image? Does he need to understand the science behind the radiation?