Kavka's Toxin: The Paradox of IntentionWhy logic stops you from claiming a free reward

From the show

Living Thought Experiments

This thought experiment exposes the surprising limits of human willpower. You are offered a fortune merely to intend to drink a mild poison, verified by a brain scanner. Since you do not actually have to drink it to keep the cash, your rational mind prevents you from forming the sincere intention required to win.