Title: Karl Popper.
Question: A possible rebuttal to Gray's argument appears in Popper's reply to which philosopher?

Title: Gramophone record.
Question: What company out of Japan offered laser turntables that read vinyl discs optically?

Title: Financial crisis of 2007%E2%80%9308.
Question: How much did JPMorgan estimate was the average recovery rate for high quality CDOs that had been liquidated?

Title: Warsaw Pact.
Question:
The acceptance of which country into NATO prompted the formation of the Warsaw Pact?