As in, the concept of them? Like if you tried to explain humans to a robot you'd be like "well they get their energy by consuming things" and the robot would be like "yeah got it easy" and you'd be all "and there's this one bit called the brain that controls everything" and the robot would be all "yeah seen it before move on" then you'd been like "and when they recharge themselves at night they have unbelievably realistic visions where almost anything can happen, but it doesnt" then the robot would be like "yeah yeah yeah.... hang on a second repeat that last bit"

you get me?