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(Jan 29, 2025 05:17 PM)Ostronomos Wrote: [ -> ]It was not long after that Julius Caesar and Alexander the Great left their indelible mark on the world.
I realize that I am merely describing events in History without the proof that change is an illusion. But I feel intuitively that a "Matrix" reality is the only possible conclusion.
During the latter part of the Stone Age, we were just beginning to form tribes and agriculture.
What I find most mind-boggling is that we find ourselves in the information age. With all its technological marvels.
There seems to be a mutual relationship between information and reality.
Those are merely examples of putative "change"? Otherwise (as you perhaps suggest) we don't get how the incremental developments in civilization you mention would perversely imply that change is an illusion. (I.e., beyond the insufficiency of "intuition", nothing is submitted for making the case, with respect to the question or proposal.)
In the eternalism or block view of time, there is still a sequence of different states of the universe -- and content being different in one particular conscious moment compared to the rest. Crudely akin to a
flip book, but without the flipping of pages (a literal objective flow).
"Change" usually entails more than dissimilarity, though. It variously implies transformation or transition or replacement. Occasionally it can merely indicate a relational difference between two states, perhaps minus being loaded with passage and action (but the latter is perhaps iffy).
Tegmark (below) actually proposed that a
block-universe itself could still be a
higher dimensional simulation (without requiring computation as an action or happening). The concept of a simulated reality, however, does not necessitate either technology or a biological brain being the provenance of such. The simulation could be something falling out of a more fundamental stratum that is quite unlike the regularities and things abiding within the simulated realm itself. (Explaining a situation with a repeat of that situation is a recursive fallacy. That does not forbid nested, quasi-replicated levels from ever finitely being the case. But at some point there must be something completely different in characteristics that serves as the ultimate origin of them.)
Max Tegmark: [Seth] Lloyd has advanced the intermediate possibility that we live in an analog simulation performed by a quantum computer, albeit not a computer designed by anybody — rather, because the structure of quantum field theory is mathematically equivalent to that of a spatially distributed quantum computer. In a similar spirit, Schmidhuber, Wolfram and others have explored the idea that the laws of physics correspond to a classical computation. Below we will explore these issues in the context of the MUH.
[...] Suppose that our universe is indeed some form of computation. A common misconception in the universe simulation literature is that our physical notion of a one-dimensional time must then necessarily be equated with the step-by-step one-dimensional flow of the computation. I will argue below that if the MUH is correct, then computations do not need to evolve the universe, but merely describe it (defining all its relations).
The temptation to equate time steps with computational steps is understandable, given that both form a one-dimensional sequence where (at least for the non-quantum case) the next step is determined by the current state. However, this temptation stems from an outdated classical description of physics: there is generically no natural and well-defined global time variable in general relativity, and even less so in quantum gravity where time emerges as an approximate semiclassical property of certain “clock” subsystems.
Indeed, linking frog perspective time with computer time is unwarranted even within the context of classical physics. The rate of time flow perceived by an observer in the simulated universe is completely independent of the rate at which a computer runs the simulation.
Moreover, as emphasized by Einstein, it is arguably more natural to view our universe not from the frog perspective as a 3-dimensional space where things happen, but from the bird perspective as a 4-dimensional spacetime that merely is.
There should therefore be no need for the computer to compute anything at all — it could simply store all the 4-dimensional data, i.e., encode all properties of the mathematical structure that is our universe. Individual time slices could then be read out sequentially if desired, and the “simulated” world should still feel as real to its inhabitants as in the case where only 3-dimensional data is stored and evolved.
[...] In conclusion, the role of the simulating computer is not to compute the history of our universe, but to specify it. ... Each relation of the mathematical structure is thus defined by a computation. In other words, if our world is a well-defined mathematical structure in this sense, then it is indeed inexorably linked to computations, albeit computations of a different sort than those usually associated with the simulation hypothesis: these computations do not evolve the universe, but define it by evaluating its relations. --The Mathematical Universe (paper)