Why a Green Apple Proves All Ravens Are Black

Logically, seeing a green apple technically confirms that all ravens are black. This famous paradox shows a strange gap between formal mathematical logic and our common sense intuition.

The argument stems from the idea that any observation of a non-black non-raven supports the rule that all ravens are black. While finding a red car doesn't seem like bird research, it fits the formal structure of evidence gathering. Philosophers find this frustrating because it implies we could study the entire universe from our living room. It highlights the surprising difficulty of defining what actually counts as scientific proof.