Opening page…
Your answer
You’ll sign in or make an account, then this is kept as your answer.
Nearby questions5
- You glance at a clock that stopped yesterday. By luck, it shows the correct time now. You believe it—and you are right. Do you know the time?
- How can you search for something if you don't already know what it is — and if you do know, what is left to find?
- You can sound exactly like you understand something without understanding it — and now the sounding is free while the understanding stays expensive. If no one can tell them apart, which one survives?
- When should you trust an answer you cannot check yourself — from an expert, a book or a machine?
- What could convince you that you are awake rather than dreaming? Could that same evidence appear inside a dream?