Omega only appears conditionally on at least the statement it asserts being correct. By taking/not taking its offer, you are only controlling the conditions under which Omega appears, and not contents of the envelope. By refusing the £10, you make sure that Omega appears only when the envelope is full (but you don’t make the envelope full, though it’s going to be full given that you’ve made this decision), and by accepting the £10, you make sure that Omega appears only when the envelope is empty.
It’s admittedly confusing that you can (acausally) control the conditions under which Omega appears (when the envelope is full/empty), when Omega remains right in front of you during the decision-making (this is analogous to controlling the contents of the big box in Newcomb’s problem) but at the same time, you don’t control the contents of the envelope.
By taking/not taking its offer, you are only controlling the conditions under which Omega appears
And by assuming you are a certain sort of agent (which you incorrectly call money-maximizing), you set those conditions to your own disadvantage! An agent which just flips a coin to decide whether to accept or refuse the £10 will have a bigger expected payoff than you. So surely a rational entity can do better.
And by assuming you are a certain sort of agent (which you incorrectly call money-maximizing), you set those conditions to your own disadvantage!
You are setting the conditions for appearance of Omega. The best conditions for Omega to appear are those where you take its money, since it’s good for nothing else.
By refusing the £10, you maximize the amount of money that the agents who see Omega get, by moving Omega around. It’s similar to trying to become a lottery winner by selling to existing lottery winners the same dietary supplement you take, since this makes the takers of this dietary supplement more likely to be lottery winners. (Added this paragraph to the top-level comment.)
I’m not 100% sure but it seems like you and Jonii are calculating correctly. It’s just ironic that if the situation as described happens to you, it means you were unlucky and there’s no money in Alpha’s envelope, whereas if it happens to someone like me, it means I was lucky and the £1000000 is there.
Omega only appears conditionally on at least the statement it asserts being correct. By taking/not taking its offer, you are only controlling the conditions under which Omega appears, and not contents of the envelope. By refusing the £10, you make sure that Omega appears only when the envelope is full (but you don’t make the envelope full, though it’s going to be full given that you’ve made this decision), and by accepting the £10, you make sure that Omega appears only when the envelope is empty.
It’s admittedly confusing that you can (acausally) control the conditions under which Omega appears (when the envelope is full/empty), when Omega remains right in front of you during the decision-making (this is analogous to controlling the contents of the big box in Newcomb’s problem) but at the same time, you don’t control the contents of the envelope.
And by assuming you are a certain sort of agent (which you incorrectly call money-maximizing), you set those conditions to your own disadvantage! An agent which just flips a coin to decide whether to accept or refuse the £10 will have a bigger expected payoff than you. So surely a rational entity can do better.
You are setting the conditions for appearance of Omega. The best conditions for Omega to appear are those where you take its money, since it’s good for nothing else.
By refusing the £10, you maximize the amount of money that the agents who see Omega get, by moving Omega around. It’s similar to trying to become a lottery winner by selling to existing lottery winners the same dietary supplement you take, since this makes the takers of this dietary supplement more likely to be lottery winners.
(Added this paragraph to the top-level comment.)
I’m not 100% sure but it seems like you and Jonii are calculating correctly. It’s just ironic that if the situation as described happens to you, it means you were unlucky and there’s no money in Alpha’s envelope, whereas if it happens to someone like me, it means I was lucky and the £1000000 is there.
So you refuse the £10?
No, I don’t. Why?
I’m sorry—I was confused when I wrote that comment.