/sci/ - Science & Math

I have proof that free will is not computable by combining the proof of the Halting problem with Newcomb's paradox.

Assume we can create a computational device (something equivalent to a Turing machine) which perfectly predicts our decisions. Without loss of generality we can also assume that it can do this prediction in arbitrarily short time (see e.g. Malament-Hogarth spacetime constructions for making infinitely long computations in finite time). Now ask this computer the following simple question: "Will I fap to tranny porn or to scat porn today?" After it's done with its computation it will yield the output "You will fap to scat porn." Now after hearing this prediction please tell me, which law of physics is stopping me from fapping to trannies instead?