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Objectivity/dream/skepticism/Frith: one can prove that someone is dreaming by recording his brain activity.
Dream/Knowledge/Frith: E.g. Zhuangzi dreamed: "I was a butterfly who knew nothing about Zhuangzi." When he woke up, he thought he did not know if he was a man who had dreamed to be a butterfly, or a butterfly who dreamed to be a man.
Sleeping/Dream/Frith: especially when you fall asleep, the brain often reenacts what we have done in the course of the day.
Control/Control body/Brain/Frith: there is no last control body of the brain that watches over everything, since there is no brain region that only delivers output signals but does not receive any input signals.
Wie unser Gehirn die Welt erschafft Heidelberg 2013