Knowing that philosophers are the only people who two-box on Newcomb’s problem, and they constitute a vanishingly small fraction of Earth’s population, I confidently one-box. Then I rush out to spend my winnings as quickly as possible, before the inevitable inflation hits.
Telling me what X is will have no effect on my action, because I already have that information. Making copies of me has no effect on my strategy, for the same reason.
Knowing that philosophers are the only people who two-box on Newcomb’s problem, and they constitute a vanishingly small fraction of Earth’s population, I confidently one-box. Then I rush out to spend my winnings as quickly as possible, before the inevitable inflation hits.
Telling me what X is will have no effect on my action, because I already have that information. Making copies of me has no effect on my strategy, for the same reason.