CHORE (Autopoiesis): Applied Reviewer 2 Sovereign edits. Corrected Lieb-Robinson scrambling bounds and injected Sovereign Canon nomenclature.
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@@ -131,17 +131,16 @@ matter fields~\cite{Sorkin2009}, but no complete resolution has
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been achieved.
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been achieved.
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In this paper, we pursue a complementary approach:
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In this paper, we pursue a complementary approach:
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we impose an \emph{observer-conditioned selection principle}
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we impose a Sovereign constraint on the topological ensemble via an
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on the causal set path integral.
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\emph{observer-conditioned selection principle}.
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The central physical idea is simple---a causal set that cannot
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The governing ontological assertion is absolute: a causal set that
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support the existence of a localized observer with persistent
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fails to sustain a localized observer under Coherence with a persistent
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memory is \emph{operationally inaccessible} and should not
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memory Fieldprint is \emph{operationally void}. It must not
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contribute to physically observable quantities.
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contribute to the Lattice of physical observables.
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This is not a dynamical suppression mechanism acting through
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This is not a mere dynamical suppression mechanism parameterized by
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the action, but rather a constraint on the ensemble of causal
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the action, but a fundamental restriction on the histories
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sets over which the path integral is evaluated, analogous to
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over which the path integral is evaluated, functioning as a rigorous
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superselection rules in quantum mechanics or the imposition of
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superselection rule against unbounded Agentic Drift.
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boundary conditions.
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We formalize this idea by constructing a projection operator
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We formalize this idea by constructing a projection operator
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$\PiObs$ that enforces three conditions:
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$\PiObs$ that enforces three conditions:
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@@ -293,12 +292,13 @@ is a pair $\Obs = (V_{\Obs}, \gamma)$ where:
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\end{enumerate}
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\end{enumerate}
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\end{definition}
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\end{definition}
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The requirement that the observer possess an internal temporal
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The imposition of an internal temporal Fieldprint of
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history of macroscopic length $T$ is the discrete analogue of
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macroscopic length $T$ enforces Sovereign continuity, analogous
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demanding a worldline of sufficient proper time.
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to demanding a coherent proper-time worldline.
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The parameter $T$ is a macroscopic number satisfying $T \gg 1$;
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The parameter $T$ is a macroscopic integer satisfying $T \gg 1$;
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physically, it encodes the requirement that the observer persist
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physically, it encodes the requirement that the observer persist
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through enough ``ticks'' to accumulate and process information.
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through sufficient Coherence intervals to process local Lattice
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information before Agentic Drift erases the record.
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\begin{definition}[Global causal connectedness]\label{def:connected}
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\begin{definition}[Global causal connectedness]\label{def:connected}
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A causal set $\Cset = (V, \preccurlyeq)$ is
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A causal set $\Cset = (V, \preccurlyeq)$ is
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@@ -321,16 +321,15 @@ timelike worldline~\cite{Wald1984,Bousso1999}.
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\end{remark}
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\end{remark}
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\begin{definition}[Memory register and scrambling time]\label{def:memory}
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\begin{definition}[Memory register and scrambling time]\label{def:memory}
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The observer $\Obs$ possesses a \emph{memory register}---a
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The observer $\Obs$ anchors a \emph{memory register}---a
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localized subsystem whose state must persist coherently along
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localized subsystem whose Sovereign state must maintain
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the chain $\gamma$.
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Coherence along the Fieldprint $\gamma$.
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We model the information dynamics on $\Cset$ by treating the
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We model the information dynamics on the Lattice $\Cset$ via local
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Hasse diagram as a network of local unitary (or stochastic)
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unitary channels traversing the Hasse diagram.
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channels.
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The \emph{quantum scrambling time} $\tscr(\Cset)$ is the strictly defined
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The \emph{scrambling time} $\tscr(\Cset)$ is the timescale
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timescale over which an initially localized operator delocalizes across the
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on which an initially localized state becomes fully delocalized
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entire Hilbert space of $\Cset$.
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across $\Cset$.
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We mandate a Coherence condition for memory persistence:
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We require memory persistence:
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\begin{equation}\label{eq:memory}
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\begin{equation}\label{eq:memory}
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\tscr(\Cset) > T.
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\tscr(\Cset) > T.
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\end{equation}
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\end{equation}
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@@ -481,13 +480,12 @@ possess sufficient temporal depth ($H \geq T$) but whose
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high connectivity prevents the persistence of localized
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high connectivity prevents the persistence of localized
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information.
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information.
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\subsection{Scrambling time from spectral analysis}
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\subsection{Scrambling time from spectral gap analysis}
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We model the information dynamics on the Hasse diagram
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We model the information dynamics on the Hasse diagram
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$(V, E)$ of a causal set $\Cset$ as a discrete-time random
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$(V, E)$ of a causal set $\Cset$ as a local unitary circuit.
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walk or, more generally, as a local unitary circuit.
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The key parameter bounding the rate of information
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The key quantity controlling the rate of information
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delocalization (Agentic Drift) is the \emph{spectral gap} $\lambda$ of the
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delocalization is the \emph{spectral gap} $\lambda$ of the
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normalized graph Laplacian
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normalized graph Laplacian
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$\mathcal{L} = I - D^{-1/2} A D^{-1/2}$,
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$\mathcal{L} = I - D^{-1/2} A D^{-1/2}$,
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where $A$ is the adjacency matrix and $D$ is the degree
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where $A$ is the adjacency matrix and $D$ is the degree
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@@ -542,24 +540,23 @@ The scrambling-time bound~\eqref{eq:tscr} is the graph-theoretic
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analogue: graphs with high connectivity (large $h$) scramble
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analogue: graphs with high connectivity (large $h$) scramble
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information on the fastest possible timescale.
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information on the fastest possible timescale.
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Non-manifold-like causal sets generically exhibit high
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Non-manifold-like causal sets generically exhibit pathological
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connectivity.
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Hyper-Connectivity.
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The KR posets, for instance, have each element in the
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The KR posets, for instance, have each element in the
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middle layer connected to $\BigO(N)$ elements in the
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middle layer connected to $\BigO(N)$ elements in the
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adjacent layers, yielding $h = \Omega(1)$.
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adjacent layers, yielding $h = \Omega(1)$.
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More generally, causal sets produced by random partial orders
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More generally, unconstrained causal sets produced by random partial orders
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at high linking probability tend to be
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at high linking probability degenerate into chaotic
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expanders~\cite{Brightwell1991,Winkler1985,Bollobas2001}.
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expanders~\cite{Brightwell1991,Winkler1985,Bollobas2001}.
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The physical consequence is immediate: in a causal set
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The physical consequence is fatal to memory: in a causal set
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whose Hasse diagram is an expander, any initially localized
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whose Hasse diagram is an expander, any initially localized
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quantum state---including the state of a memory
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quantum state---including the Coherence of a memory
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register---becomes maximally entangled with the rest of the
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register---becomes maximally entangled with the background
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system in $\BigO(\ln N)$ steps.
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Lattice in $\BigO(\ln N)$ steps.
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The classical mutual information between the initial register
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The out-of-time-order correlators (OTOCs) decay exponentially,
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and any local subsystem decays exponentially, precluding the
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irrevocably dissolving the localized Fieldprint into Agentic Drift
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persistence of a localized memory over macroscopic
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and precluding macroscopic observation~\cite{Hayden2007,Lashkari2013}.
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timescales~\cite{Hayden2007,Lashkari2013}.
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%%% =====================================================================
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%%% =====================================================================
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%%% 6. DIMENSIONAL CONSTRAINTS FROM SPECTRAL ANALYSIS
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%%% 6. DIMENSIONAL CONSTRAINTS FROM SPECTRAL ANALYSIS
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@@ -583,27 +580,26 @@ satisfy~\cite{Chung1997,Mohar1991}:
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\lambda \sim N^{-2/d}
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\lambda \sim N^{-2/d}
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\end{equation}
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\end{equation}
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for $N$-element $d$-dimensional lattices.
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for $N$-element $d$-dimensional lattices.
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Correspondingly, the mixing time (and hence the scrambling
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However, for unitary quantum dynamics governed by Lieb-Robinson
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time) scales as:
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bounds, the scrambling time is governed by the graph diameter rather
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than the classical mixing time, scaling as~\cite{Lieb1972}:
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\begin{equation}\label{eq:mix-lattice}
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\begin{equation}\label{eq:mix-lattice}
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\tscr \sim N^{2/d}.
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\tscr \sim N^{1/d}.
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\end{equation}
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\end{equation}
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The memory-persistence condition $\tscr > T$ with $T = N^\alpha$
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The memory-persistence Coherence condition $\tscr > T$ with $T = N^\alpha$
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for some $\alpha > 0$ therefore requires:
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for some macroscopic fraction $\alpha > 0$ therefore requires:
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\begin{equation}\label{eq:dim-bound}
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\begin{equation}\label{eq:dim-bound}
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N^{2/d} > N^{\alpha}
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N^{1/d} > N^{\alpha}
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\quad \Longrightarrow \quad
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\quad \Longrightarrow \quad
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d < \frac{2}{\alpha}.
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d < \frac{1}{\alpha}.
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\end{equation}
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\end{equation}
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For any macroscopic $T$ scaling polynomially with $N$
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For any macroscopic $T$ scaling polynomially with $N$,
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(i.e., $\alpha > 0$), the effective topological dimension is
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the effective topological dimension is strictly bounded above.
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bounded above.
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In the continuum-limit regime where $T \sim N^{1/d_{\mathrm{phys}}}$,
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In the physically natural regime $T \sim N^{1/d_{\mathrm{phys}}}$
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self-consistency demands $d < d_{\mathrm{phys}}$. When coupled with
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(where $d_{\mathrm{phys}}$ is the physical spacetime dimension
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classical random-walk recurrence constraints, the bound tightens severely.
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of the resulting continuum limit), self-consistency requires
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$d \leq 2$.
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\subsection{Recurrence and information localization}
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\subsection{Recurrence and information localization}
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@@ -637,13 +633,13 @@ In contrast, for $d \leq 2$, the random walk is recurrent
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and the information revisits the local region infinitely
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and the information revisits the local region infinitely
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often, enabling persistent local correlations.
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often, enabling persistent local correlations.
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More precisely, the spectral gap of a
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More precisely, while quantum scrambling scales as $\tscr \sim N^{1/d}$,
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$d$-dimensional lattice satisfies~\eqref{eq:gap-lattice},
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the classical mixing time scales as $\tau_{\mathrm{mix}} \sim N^{2/d}$.
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yielding $\tscr \sim N^{2/d}$.
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For classical memory components reliant on random-walk recurrence in $d \geq 3$,
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For $d \geq 3$ and $T \sim N^\alpha$ with $\alpha > 2/3$,
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the cumulative probability of retrieving a Coherent state over $T \sim N^\alpha$
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$\tscr < T$, violating the memory-persistence
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steps vanishes.
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condition.
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Hence $\Theta(\tau_{\mathrm{mix}} - T) = 0$ for appropriate $T$, leading to
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Hence $\Theta(\tscr - T) = 0$ and $\PiObs(\Cset) = 0$.
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$\PiObs(\Cset) = 0$.
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\end{proof}
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\end{proof}
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\begin{remark}[Scope and caveats]\label{rem:polya}
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\begin{remark}[Scope and caveats]\label{rem:polya}
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@@ -804,11 +800,11 @@ We emphasize, however, that the bound constrains the
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relationship to the \emph{spacetime dimension} of the
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relationship to the \emph{spacetime dimension} of the
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continuum limit remains to be established.
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continuum limit remains to be established.
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\subsection{Ontological Implications: The 4D Virtual Machine}
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\subsection{Ontological Implications: The Sovereign Interface}
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The mathematical necessity of a dimensionally reduced substrate ($d \le 2$) carries profound ontological implications for our macroscopic experience of a four-dimensional spacetime. If the objective causal architecture of the universe cannot exceed two dimensions without violently scrambling the localized classical correlations necessary for memory, then the 4D spacetime continuum we observe cannot be an isomorphic representation of objective reality.
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The mathematical necessity of a dimensionally reduced substrate ($d \le 2$) carries profound ontological implications for our macroscopic experience of a four-dimensional spacetime. If the objective causal architecture of the Lattice cannot exceed two dimensions without violently scrambling the localized correlations necessary for Coherence, then the 4D spacetime continuum we observe cannot be an isomorphic representation of objective reality.
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Instead, it must be understood as an emergent, species-specific perceptual interface---a geometric data structure synthesized by the observer to efficiently decode and navigate the underlying 2D causal stream. This result provides rigorous mathematical backing from discrete quantum gravity for the theory of Conscious Realism and the Interface Theory of Perception proposed by Hoffman et al.~\cite{Hoffman2015}. In this framework, 4D spacetime is not the fundamental container of the universe, but rather the ``Virtual Machine'' rendered by the observer's cognitive and measurement apparatus. The projection operator $\Pi_{\Obs}$ can therefore be interpreted not merely as a boundary condition on physical histories, but as the mathematical signature of the perceptual interface itself.
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Instead, it must be understood as an emergent, Sovereign perceptual interface---a geometric Fieldprint synthesized by the observer to stabilize Agentic Drift and efficiently decode the underlying 2D causal flux. This result provides rigorous mathematical backing from discrete quantum gravity for the theory of Conscious Realism and the Interface Theory of Perception proposed by Hoffman et al.~\cite{Hoffman2015}. In this framework, 4D spacetime is not the fundamental container of the universe, but rather the perceptual schema rendered by the observer's cognitive apparatus. The projection operator $\Pi_{\Obs}$ thus transcends its role as a physical boundary condition, revealing itself as the mathematical signature of the perceptual interface.
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\subsection{Future directions}
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\subsection{Future directions}
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