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Single Idea 2047

[filed under theme 13. Knowledge Criteria / D. Scepticism / 5. Dream Scepticism ]

Full Idea

What evidence could be brought if we were asked at this very moment whether we are asleep and are dreaming all our thoughts?

Gist of Idea

What evidence can be brought to show whether we are dreaming or not?

Source

Plato (Theaetetus [c.368 BCE], 158b)

Book Ref

Plato: 'Theaetetus', ed/tr. Waterfield,Robin [Penguin 1987], p.42


The 7 ideas with the same theme [apparent reality may be just a false dream]:

What evidence can be brought to show whether we are dreaming or not? [Plato]
Dreams aren't a serious problem. No one starts walking round Athens next morning, having dreamt that they were there! [Aristotle]
You know you were dreaming when you wake, but there might then be a greater awakening from that [Zhuangzi (Chuang Tzu)]
Did Chuang Tzu dream he was a butterfly, or a butterfly dream he was Chuang Tzu? [Zhuangzi (Chuang Tzu)]
Waking actions are joined by memory to all our other actions, unlike actions of which we dream [Descartes]
Dreams must be false because they seem absurd, but dreams don't see waking as absurd [Hobbes]
Dreams can be explained fairly scientifically if we assume a physical world [Russell]