Opening page…
An open question
Knowledge
What if this is the dream?
What could convince you that you are awake rather than dreaming? Could that same evidence appear inside a dream?
Ordinary certainty about the world depends on the senses whose reliability is in question. Ask what kind of doubt a good answer really needs to defeat.
From around the house
Sign in to see the notices, scenes, and arguments the house has gathered around this question — and to raise it yourself.