If you are embedded in a CTC, there is no changing that.
I’m not saying you’re changing a timeline, simply that it’s not the only looped timeline that decoheres from a single point in a many-worlds formulation. If you arrived back at a previous point in your timeline via reverse causation, then several timelines/worlds still decohere from that point—including the timeline you were “previously” in. They all exist. In any case, this isn’t the core of the essay’s argument. I noted that the MWI is used to illustrate possibilities; we simply require a deterministic interpretation at a minimum. Even if only one causal loop timeline exists, the rest of the argument follows in terms of which causal loops are possible.
it would not be an embedded agent, but something from outside the Universe
I defined a universe simply as a causal system, so initiating a simulation within your own simulation entails causation, thus one causal system, or universe. But even within one simulation, what’s to stop an agent from manipulating it? In Maxwell’s demon, we can think of the chambers, demon, and the demon’s environment as a single simulation—but the demon can still rearrange its information.
That is incompatible with classical GR, the best I can glean.
GR is an emergent description of quantum information/entanglement, so it does not inherently prohibit reverse causation by those means.
From that point on in your post, it looks like you are basically throwing **** against the wall and seeing what sticks, so I stopped trying to understand your logic.
Sweet.
To quote the classic movie, “Life, uh, finds a way”. Which is a nice and warm sentiment, but nothing more.
Subjective sensation may play more of a role in a causal loop than you think. I expand on that topic in this essay.
I’m not saying you’re changing a timeline, simply that it’s not the only looped timeline that decoheres from a single point in a many-worlds formulation. If you arrived back at a previous point in your timeline via reverse causation, then several timelines/worlds still decohere from that point—including the timeline you were “previously” in. They all exist. In any case, this isn’t the core of the essay’s argument. I noted that the MWI is used to illustrate possibilities; we simply require a deterministic interpretation at a minimum. Even if only one causal loop timeline exists, the rest of the argument follows in terms of which causal loops are possible.
I defined a universe simply as a causal system, so initiating a simulation within your own simulation entails causation, thus one causal system, or universe. But even within one simulation, what’s to stop an agent from manipulating it? In Maxwell’s demon, we can think of the chambers, demon, and the demon’s environment as a single simulation—but the demon can still rearrange its information.
GR is an emergent description of quantum information/entanglement, so it does not inherently prohibit reverse causation by those means.
Sweet.
Subjective sensation may play more of a role in a causal loop than you think. I expand on that topic in this essay.