The Information Argument

You may want to read these posts before continuing:

  1. Ineffability of Qualia
  2. What is Sentience?
  3. The Dualist’s Predicament
  4. Refuting Physicalism Subjectively


Imagine a universe with two similar rooms, called room0 and room1. In room0 there is a closed note with ‘0’ written on it, and in room1 there is a closed note with ‘1’ written on it.

You are in one of these two rooms, but you don’t yet know which one, because you have not yet opened the note in your room.

There is also someone in the other room. As it happens, this person’s physical body is identical to yours “down to the quark”.

Whether you are in room0 or in room1 makes no difference to the state of the physical universe in this scenario, because in either event, there are two physical bodies exactly like yours in two specific locations.

Since the state of the physical universe is the same in both cases, it does not contain information about which room you are in.

Yet this information does exist, for you can learn it by reading the note in your room.

(Here is a simpler version of the argument.)


6 Responses to “The Information Argument”

  • david says:

    You know nothing more, because you don’t know if you are the initial you or the copy. Otherwise the copies are not identical.

    • admin says:

      Regardless of who you are…
      1. Before reading the note, you could not know which room you were in, even if you knew the state of the entire physical universe.
      2. After reading the note, you know which room you were in.
      Which of the above do you disagree with?

  • Tonio says:

    If you ever played video games, this akin to saying that there is a game state, and you can have the point of view of either player 1 or player 2 or none of them (spectator). Surely the game world is indistinguishable from whether you’re viewing it from player 1 or 2 point of view. But the universe is not the game world, it also includes the person sitting at their computer.

    I call this the fallacy of “outsider view”. You’re making the thought experiment but the fact is that we’re not talking about identical universes, we’re only talking about thought experiments. You’re looking at the universe from the outside, i.e. as if you are researcher doing some experiment on some closed system. The problem is that this is never true, as you are forever part of the system you’re studying.

    So the answer to your question, “where did that information come from whether I am in room0 or room1”, is that the information came from me when I imagined your thought experiment and pretended to be the person in room0 or room1. As far as I know, I’m part of the universe just like you are.

    • admin says:

      Your video game analogy is fine, but it only seems to confirm the argument. You had to look outside the game world for the information source, just like I have to look outside the physical universe. Yes, I am part of the universe, but if I were part of the physical universe then its state would have depended on which room I am in.

      As you say, when I imagine that universe, that bit of information is coming from outside that (imagined) universe. The question then, is where would the information come from if this experiment happened in my real universe?

  • changerofbits says:

    It seems to me that it really doesn’t matter if minds are dualist or not in this scenario, since there would still be two minds where one would read the card and see a zero and the other would read a one, regardless of which one is you and which one is someone else. *shrug*

    If we assume both physical bodies are “you” in dualist world where there is one mind for one body, then when you read the card, “you” would see both a zero and a one, which is a paradox.

Leave a Reply

Your email address will not be published. Required fields are marked *

Cheap NFL Jerseys Cheap NFL Jerseys goedkope air max online Basket Air Jordan 11 Christian Louboutin Outlet Cheap Jerseys Wholesale Jerseys Michael Kors Outlet Online Ray Ban Sunglasses Jerseys Wholesale Coach Outlet Store michael jordan air jordan 11 Coach Outlet Cheap NFL Jerseys Kate Spade Outlet Sale air max 90 pas cher junior Wholesale Jerseys Jerseys Cheap nba jerseys vegas Jerseys Wholesale China