essentially erasing the distiction of map and territory
This idea has been implied before and I don't think it holds water. That this has come up more than once makes me think that there is some tendency to conflate the map/territory distinction with some kind of more general philosophical statement, though I'm not sure what. In any event, the Tegmark level 4 hypothesis is orthogonal to the map/territory distinction. The map/territory distinction just provides a nice way of framing a problem we already know exists.
In more detail:
Firstly, even if you take some sort of Platonic view where we have access to all the math, you still have to properly calibrate your map to figure out what part of the territory you're in. In this case you could think of calibrating your map as applying an appropriate automorphism, so the map/territory distinction is not dissolved.
Second, the first view is wrong, because human brains do not contain or have access to anything approaching a complete mathematical description of the level 4 multiverse. At best a brain will contain a mapping of a very small part of the territory in pretty good detail, and also a relatively vague mapping that is much broader. Brains are not logically omniscient; even given a complete mathematical description of the universe, the derivations are not all going to be accessible to us.
So the map territory distinction is not dissolved, and in particular you don't somehow overcome the mind projection fallacy, which is a practical (rather than philosophical) issue that cannot be explained away by adopting a shiny new ontological perspective.
It is true that a "Shiny" new ontological perspective changes little. Practical intelligences are still bayesians, for information theoretical reasons. What my rather odd idea looks at is specifically what one might call the laws of physics and the mystery of the first cause.
And if one might know the Math behind the Universe, the only thing that one might get is a complete theory of QM.
Please read the post before voting on the comments, as this is a game where voting works differently.
Warning: the comments section of this post will look odd. The most reasonable comments will have lots of negative karma. Do not be alarmed, it's all part of the plan. In order to participate in this game you should disable any viewing threshold for negatively voted comments.
Here's an irrationalist game meant to quickly collect a pool of controversial ideas for people to debate and assess. It kinda relies on people being honest and not being nitpickers, but it might be fun.
Write a comment reply to this post describing a belief you think has a reasonable chance of being true relative to the the beliefs of other Less Wrong folk. Jot down a proposition and a rough probability estimate or qualitative description, like 'fairly confident'.
Example (not my true belief): "The U.S. government was directly responsible for financing the September 11th terrorist attacks. Very confident. (~95%)."
If you post a belief, you have to vote on the beliefs of all other comments. Voting works like this: if you basically agree with the comment, vote the comment down. If you basically disagree with the comment, vote the comment up. What 'basically' means here is intuitive; instead of using a precise mathy scoring system, just make a guess. In my view, if their stated probability is 99.9% and your degree of belief is 90%, that merits an upvote: it's a pretty big difference of opinion. If they're at 99.9% and you're at 99.5%, it could go either way. If you're genuinely unsure whether or not you basically agree with them, you can pass on voting (but try not to). Vote up if you think they are either overconfident or underconfident in their belief: any disagreement is valid disagreement.
That's the spirit of the game, but some more qualifications and rules follow.
If the proposition in a comment isn't incredibly precise, use your best interpretation. If you really have to pick nits for whatever reason, say so in a comment reply.
The more upvotes you get, the more irrational Less Wrong perceives your belief to be. Which means that if you have a large amount of Less Wrong karma and can still get lots of upvotes on your crazy beliefs then you will get lots of smart people to take your weird ideas a little more seriously.
Some poor soul is going to come along and post "I believe in God". Don't pick nits and say "Well in a a Tegmark multiverse there is definitely a universe exactly like ours where some sort of god rules over us..." and downvote it. That's cheating. You better upvote the guy. For just this post, get over your desire to upvote rationality. For this game, we reward perceived irrationality.
Try to be precise in your propositions. Saying "I believe in God. 99% sure." isn't informative because we don't quite know which God you're talking about. A deist god? The Christian God? Jewish?
Y'all know this already, but just a reminder: preferences ain't beliefs. Downvote preferences disguised as beliefs. Beliefs that include the word "should" are are almost always imprecise: avoid them.
Additional rules: