The apple-recognition machinery in your brain does not suddenly switch off, and then switch on again later—if it did, we would be more likely to recognize it as a factor, as a requirement.
Actually, the apple-recognition machinery in the human brain really does turn off on a regular basis. You have to be awake in order to recognize an apple; you can’t do it while sleeping.
[nitpick]
Actually, the apple-recognition machinery in the human brain really does turn off on a regular basis. You have to be awake in order to recognize an apple; you can’t do it while sleeping.
[/nitpick]
Do you think you wouldn’t be able to recognise an apple if you saw it in a dream?
To be entirely fair… no, I occasionally don’t.