Wearable tech doesn't make you a cyborg because it isn't part of you? The fact that you scoff at things that sound like nonsense but which includes the prediction that you will scoff is (at best) very weak evidence for it, since scoff is what you would do anyway? Besides, the garbage man doesn't say anything about how he knows about the simulation, if he just made it up, then what him believing it is also unrelated to whether or not it is true.