Newcomb's Poison Paradox

Here's a demonstration of a simple (but more lethal) variant of Newcomb's paradox. The rules are as follows:

A player must choose between two boxes designated A and B. One of the boxes contains poison and the other contains money (let's say $10). The contents of the boxes were set by a perfect predictor who knows what the player's choice will be.

• If the predictor has predicted that the player will take box A, box A will contain poison and box B will contain money.
• If the predictor has predicted that the player will take box B, box B will contain poison and box A will contain money.

Can you fool the perfect predictor? Choose wisely!