There aren’t 3^^^3 people and there is no machine that can simulate even one person, let alone that many people.
Nobody has such magic powers.
Even if you don’t accept 1 and 2 above, there’s no reason to expect that the person is telling the truth. He might kill the people even if you give him the $5, or conversely he might not kill them even if you don’t give him the $5.
There aren’t 3^^^3 people and there is no machine that can simulate even one person, let alone that many people.
Nobody has such magic powers.
Even if you don’t accept 1 and 2 above, there’s no reason to expect that the person is telling the truth. He might kill the people even if you give him the $5, or conversely he might not kill them even if you don’t give him the $5.
I also don’t understand the appeal of Occam’s razor, so I’m pretty sure I’m not part of the target audience for this paradox.