If the machine predicts that you will take both Boxes A and B, Box B will be empty. But if the machine predicts that you will take Box B only, then Box B will contain $1,000,000,000. The machine has already done it’s prediction and the contents of box B has already been set. Which box/boxes do you take?

To reiterate, you choices are:

-Box A and B

-Box B only

(“Box A only” is not an option because no one is that stupid lol)

Please explain your reasoning.

My answer is:

spoiler

I mean I’d choose Box B only, I’d just gamble on the machine being right. If the machine is wrong, I’ll break that thing.


This is based on Newcomb’s Paradox (https://en.wikipedia.org/wiki/Newcomb’s_paradox), but I increased the money to make it more interesting.

  • OptimusFine@kbin.social
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    1 year ago

    Worst case is I have 1.000.000 only.

    Except that’s not the worst case. If the machine predicted you would pick A&B, then B contains nothing, so if you then only picked B (i.e. the machine’s prediction was wrong), then you get zero. THAT’S the worst case. The question doesn’t assume the machine’s predictions are correct.

    • kthxbye_reddit@feddit.de
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      1 year ago

      Good point. Actually I was assuming that the machine’s predictions were never wrong. That’s also what is defined in the Newcomb’s Paradox wiki page.

      If that‘s not a 100% given, you are definitely right.