13. yüzyıl Zen Budizmi'nde tanımlanan ayrık zamansal kopukluk ('zengosaidan'), modern Bilgi Teorisi tarafından önerilen ayrık hesaplamalı 'vuruşlar' ve mantık kapılarıyla titiz bir şekilde eşleştirilebilir mi?

"zengosaidan" "Dogen" Shobogenzo Genjokoan discrete time "before and after" philosophy

### Zen Temporality: *Zengosaidan* in Dōgen’s Philosophy In Sōtō Zen Buddhism, reality is neither an enduring substance nor a linear sequence passing through an empty temporal container. Drawing on Mahāyāna emptiness (*śūnyatā*) and radical impermanence, Eihei Dōgen (1200–1253) articulated an ontology where time and existence are indivisible (*uji*, 有時, "being-time"). #### Primary Texts and Core Concepts Dōgen formulated this doctrine primarily in the *Genjōkōan* ("Actualizing the Fundamental Point," 1233) and *Uji* ("Being-Time," 1240) fascicles of his masterwork, the *Shōbōgenzō* (*Treasury of the True Dharma Eye*). * **Dharma-Position (*Hōi*, 法位):** Every phenomenon resides entirely within its own ontological state. It is unrepeatable, complete, and contains its own intrinsic temporality rather than deriving identity from temporal sequence. * **Cutting Off Before and After (*Zengosaidan*, 前後際断):** Each discrete moment (*kṣaṇa* / *hōi*) is radically cut off from temporal antecedents and successors. In *Genjōkōan*, Dōgen demonstrates this via firewood and ash: > *"Firewood turns into ash, and it does not become firewood again. Yet, do not suppose that the ash is after and the firewood before. You should understand that firewood abides in the dharma-position of firewood, which has a before and an after and is yet cut off from before and after [*zengosaidan*]. Ash abides in the dharma-position of ash, which has a before and an after."* Applying this to existential suffering (*dukkha*), Dōgen argues that life does not "turn into" death, nor does death precede or follow life. Life is completely life in its own dharma-position; death is completely death. Neither encroaches upon the other. #### Practice and Philosophical Tensions Practitioners embody this through *shikantaza* ("just sitting") and everyday mindfulness, engaging each moment wholly without projecting anxiety toward a future or clinging to a past. Within Zen studies and comparative philosophy (e.g., the Kyoto School), scholars debate whether *zengosaidan* implies a radical, static atomism or is reconciled by *kyōryaku* (経歴, "passage" or "flowing"). Dōgen explicitly denies that time simply flows mechanically from past to future like wind blowing east to west; rather, time dynamically passes while abiding in its immediate dharma-position (such as "spring passing through spring").

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discrete vs continuous time philosophy of time McTaggart presentism discrete state transitions

In analytic metaphysics and philosophical naturalism, the ontology of time centers on reconciling rigorous conceptual analysis with the empirical foundations of physics. ### The Conceptual Framework: McTaggart and Presentism In *The Unreality of Time* (1908), J. M. E. McTaggart established the canonical taxonomy of temporal ontology: * **The A-series**: Dynamic temporal properties that change over time (*past*, *present*, *future*). * **The B-series**: Static, permanent relations between events (*earlier than*, *later than*, *simultaneous with*). McTaggart argued that genuine change requires the dynamic A-series, but because every event must ultimately possess all three incompatible characteristics (having been future, being present, and becoming past), the A-series incurs a vicious infinite regress. He therefore concluded time is unreal. In response, **presentism** (an A-theoretic view pioneered in modern logic by A. N. Prior) asserts that only present entities and events exist; as Prior formulated it, the present is simply *“the real considered in relation to two particular species of unreality, namely the past and the future”*. Philosophical naturalists, however, face acute tension with presentism: Einstein’s Special Relativity denies an absolute, observer-independent global hyperplane of simultaneity, challenging the existence of an objective, universe-wide “now”. ### Discrete vs. Continuous Time and State Transitions Analytic metaphysicians and philosophers of physics debate how temporal passage is structured at the micro-level: * **Continuous Time**: Time is traditionally modeled on the continuum of real numbers ($\mathbb{R}$), meaning it is dense (between any two instants lies another) and Dedekind-complete. Because instants have zero duration and lack immediate successors, explaining how a present state dynamically “transitions” into an adjacent successor state without intermediate frozen stages invites Zeno-style paradoxes. * **Discrete Time**: Time is partitioned into fundamental, indivisible temporal atoms often termed *chronons* (isomorphic to the integers, $\mathbb{Z}$). As explored by philosophers such as W. H. Newton-Smith (*The Structure of Time*, 1980) and Jean Paul Van Bendegem (2011), discrete time models state transitions as discrete computational updates: every instant has an unambiguous immediate predecessor and successor. This eliminates the problem of adjacent moments, but creates challenges for preserving continuous physical symmetries like Lorentz invariance. ### Epistemic Status Mainstream physics firmly treats spacetime as a smooth, continuous, differentiable manifold within general relativity and standard quantum mechanics. The discretization of spacetime (e.g., via Loop Quantum Gravity or Causal Set Theory) represents an active, mathematically rigorous, but currently **unconfirmed theoretical hypothesis** within quantum gravity rather than established empirical consensus.

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Asharite occasionalism discrete time atoms temporal discontinuism comparative philosophy

### Core Position and Metaphysics In Islamic speculative theology (*kalām*), classical Ash‘arism developed an ontology of radical occasionalism and temporal discontinuism designed to safeguard God’s absolute omnipotence and unceasing sovereignty. Ash‘arite metaphysics divides created reality into indivisible atoms (*jawāhir*, sing. *jawhar*) and transient accidents (*a‘rāḍ*). A foundational axiom of the school holds that *al-‘araḍ lā yabqā zamānayn* (“an accident does not endure for two instants”). Because accidents perish upon instantiation, time and existence are discrete rather than continuous. The universe is sustained not through inherent properties or mechanical momentum, but through God’s perpetual re-creation (*tajdīd al-khalq*) at every successive, indivisible temporal instant (*ān*). Ash‘arites strictly deny secondary causation: fire does not burn cotton by its own nature; rather, God creates the contact, and concurrently creates the combustion. Observable physical regularities are not metaphysical necessities, but God’s freely willed custom (*‘ādah*) or habit. ### Key Figures, Texts, and Scriptural Roots * **Key Figures:** Abū al-Ḥasan al-Ash‘arī (d. 936), Abū Bakr al-Bāqillānī (d. 1013), and al-Ghazālī (d. 1111). * **Primary Texts:** Al-Ghazālī’s *Tahāfut al-Falāsifah* (*The Incoherence of the Philosophers*), particularly Discussion 17 on Causality. Al-Ghazālī famously argues: *“The connection between what is habitually believed to be a cause and what is believed to be an effect is not necessary according to us.”* * **Canonical Scripture:** Quran 8:17 (*“You threw not when you threw, but Allah threw”*) serves as the classical proof-text asserting divine agency over apparent creaturely action. ### Distinctive Concepts, Lived Practice, and Internal Tensions * **Acquisition (*Kasb*):** To resolve the tension between divine omnipotence and human moral responsibility, Ash‘arism posits *kasb*: God creates the act and the human will concurrently, but the human agent “acquires” moral ownership and accountability. * **Lived Practice:** This cosmology fosters radical reliance on God (*tawakkul*) and immediate attentiveness, viewing each moment not as autonomous nature, but as direct divine intervention. * **Internal Tensions:** Modern scholars (e.g., Richard M. Frank vs. Michael Marmura) debate whether al-Ghazālī was a thoroughgoing occasionalist or entertained an esoteric model of secondary natural causes. ### Comparative Philosophy and Epistemic Status Comparative philosophers note that Ash‘arite occasionalism anticipates Nicolas Malebranche’s doctrine of divine causes and David Hume’s critique of causal necessity. While contemporary apologetics often analogizes *kalām* discrete time to quantum mechanics or Planck time, mainstream historians and philosophers categorize Ash‘arite atomism as a deductive, theological metaphysics rooted in voluntarism, distinct from empirical, physical models of discrete spacetime.

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"process theology" Whitehead "actual occasions" epochal theory of time discrete quantum

### Position, Concepts, and Primary Texts Process theology, pioneered through the philosophical framework of Alfred North Whitehead’s *Process and Reality* (1929) and *Science and the Modern World* (1925), rejects the classical view of time as a smooth, continuous container and of God as an immutable, timeless monarch. Instead, it asserts the **epochal theory of time**: temporal becoming occurs not as an unbroken stream, but in discrete, indivisible packets or “drops of experience”. Whitehead coined the guiding axiom: *“there is a becoming of continuity, but no continuity of becoming”* (*Process and Reality*, II.2). The fundamental building blocks of the universe are not enduring static substances, but momentary events called **actual occasions** (or actual entities). In human terms, each occasion undergoes **concrescence**—an internal process of gathering and feeling (**prehending**) the settled data of the past, responding to a divine **“persuasive lure”** (the initial aim toward beauty and goodness), and exercising a degree of self-determination. Upon reaching its unified completion (**satisfaction**), the occasion perishes, becoming fixed objective data for future occasions. ### Internal Tensions and Lived Praxis Systematized for Christian theology by Charles Hartshorne (*The Divine Relativity*, 1948) alongside John B. Cobb, Jr. and David Ray Griffin (*Process Theology: An Introductory Exposition*, 1976), this framework reinterprets God as dynamically responsive (panentheism). * **Internal Branch/Tension:** Whitehead conceived God as a single, non-perishing actual entity. Hartshorne, Cobb, and subsequent theologians amended this, arguing that for God to genuinely relate to temporal creatures, God must be conceived as a “person” or serially ordered society of discrete divine occasions experiencing succession alongside the world. * **Lived Practice:** Christian practitioners live out a participatory theology: human action is an act of real-time co-creation. Prayer is not petitioning an omnipotent deity to override physics, but discerning and aligning with God's localized, persuasive lure in the immediate present. This has spurred strong commitments to ecological stewardship and relational pastoral care. ### Epistemic Demarcation and Scientific Dialogue Process thinkers (e.g., Griffin, Ian Barbour) draw analogies between the epochal theory and quantum mechanics, noting that discontinuous occasions parallel quantum phenomena such as state reduction, quantum jumps, and Planck-scale discreteness. However, an explicit epistemic distinction must be maintained: mainstream physics treats quantum discreteness strictly as an empirical and mathematical framework of measurable physical states. Process theology’s broader ontological extrapolation—specifically **panexperientialism**, which posits that every discrete quantum-level occasion possesses a rudimentary subjective or experiential pole—remains a speculative metaphysical hypothesis, not mainstream scientific consensus.

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quantum chronon discrete time Planck time digital physics causality bounds Wheeler

### Mainstream Stance vs. Speculative Hypotheses In contemporary mainstream physics and cosmology, spacetime is mathematically formulated as a continuous, smooth pseudo-Riemannian manifold governed by General Relativity and Quantum Field Theory (QFT). Operational causality is preserved via relativistic light cones and QFT microcausality bounds (which forbid faster-than-light signaling). Within mainstream consensus, the **Planck time** ($t_P = \sqrt{\hbar G / c^5} \approx 5.39 \times 10^{-44}\text{ s}$), introduced by Max Planck in 1899, is **not** an established discrete “pixel” or minimum quantum of time. Rather, it demarcates the dimensional threshold where smooth spacetime geometry breaks down and quantum-gravitational fluctuations dominate. By contrast, proposals postulating discrete time or a fundamental **chronon**—such as Piero Caldirola’s 1953–1980 finite-difference formulations of electron equations—remain speculative minority hypotheses. Literal spatio-temporal lattices often break continuous Lorentz invariance and rotational symmetries, which have been empirically validated to extraordinary precision. --- ### Wheeler, "It from Bit," and Digital Physics The tension between smooth classical spacetime and quantum discreteness prompted theoretical physicists to investigate informational foundations. In his landmark 1989 Tokyo symposium paper, *“Information, Physics, Quantum: The Search for Links,”* John Archibald Wheeler advanced the hypothesis of **“it from bit”**: > *“[E]very physical quantity, every it, derives its ultimate significance from bits, binary yes-or-no indications, a conclusion which we epitomize in the phrase, it from bit.”* Wheeler argued that the continuous probability functions of standard quantum mechanics are mathematical idealizations concealing an underlying, observer-participatory information architecture. This outlook intersects with **digital physics** (pioneered by Konrad Zuse in 1969 and Edward Fredkin in 1978), which hypothesizes that physical reality is pancomputational or discrete at its base. However, digital physics is largely outside the mainstream: no variant has yielded confirmed novel predictions, and deterministic discrete models face strict constraints from Bell’s theorem experiments. --- ### Key Concepts in Human Terms * **Planck Time ($t_P$):** The scale below which current physical laws lose predictive validity; a regime boundary, not a proven time step. * **Chronon:** An indivisible, discrete unit of elapsed time (an "atom" of time). * **It from Bit:** The ontological thesis that concrete reality ("it") originates from binary information processing ("bit"). Practitioners operationally rely on continuous equations, while modern quantum gravity programs (e.g., Causal Dynamical Triangulations, Causal Set Theory, and Loop Quantum Gravity) probe whether continuous spacetime emerges from fundamental, discrete causal networks.

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discrete perceptual frames cognitive psychophysics "clock cycles" conscious perception threshold

### Mainstream Consensus and Tensions In mainstream cognitive psychophysics and electrophysiology, researchers investigate whether conscious perception is continuous or divided into discrete temporal frames. The prevailing consensus rejects naive continuity: sensory input is continuously transduced by peripheral receptors, but conscious awareness operates through rhythmic, periodic sampling. However, mainstream neuroscience firmly distinguishes biological periodicities from rigid digital "clock cycles." A major internal tension exists between discrete-frame theorists and continuous-process proponents: critics such as Peter A. White observe that ongoing neural rhythms modulate perceptual thresholds by only 10–20%—behaving less like an opaque camera shutter than a fluctuating filter—and emphasize that integration windows flex dynamically rather than ticking at a universal, fixed frequency. ### Landmark Empirical Studies and Key Figures * **Rufin VanRullen and Christof Koch (2003; VanRullen, 2016):** Resurrected the discrete perception hypothesis by linking perceptual sampling to cortical oscillations. Busch, Dubois, and VanRullen demonstrated that the phase of prestimulus alpha oscillations (7–13 Hz) predicts whether a near-threshold flash is consciously perceived or missed, indicating that sensory thresholds oscillate in ~100 ms "perceptual cycles". * **Michael H. Herzog, Thomas Kammer, and Frank Scharnowski (2016):** Developed the **Two-Stage Model of Visual Perception**. In psychophysical experiments using visual masking and feature fusion, they found that features are quasi-continuously processed unconsciously for up to 400 milliseconds; when integration is complete, *"all features are simultaneously rendered conscious at discrete moments in time"*. * **Peter A. White (2018):** Published a comprehensive critique in *Consciousness and Cognition*, arguing that while periodicity in electroencephalographic (EEG) activity is well-documented, conscious experience does not necessarily consist of discrete temporal frames. ### Core Terminology * **Perceptual Cycles:** Recurring intervals during which sensory inputs are discretized and bound into momentary conscious representations. * **Temporal Binding Window (TBW):** The temporal span (from ~20 to several hundred milliseconds, depending on task and modality) inside which sequential or cross-modal stimuli are bound together as a singular, unified event. * **Excitability Phase / Absolute vs. Conscious Threshold:** The phase angle of an ongoing oscillation (peaks vs. troughs of membrane excitability) that determines whether a subliminal sensory signal surpasses the threshold required for conscious report. ### Epistemic Boundary Mainstream cognitive science grounds these models strictly in measurable neural synchrony and psychophysical thresholds. It explicitly differentiates dynamic oscillatory sampling from speculative or minority models that posit quantum-mechanical discrete state collapses (such as Orch-OR) or metaphysical temporal units.

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"digital philosophy" pancomputationalism Fredkin Landauer information theory discrete Zen time mapping

### Theoretical Position and Internal Tensions Digital philosophy and pancomputationalism represent a speculative, minority framework in physics and philosophy of science. Rather than treating matter and energy as basic substances, this model asserts that informational bits and discrete computation form the bedrock of ontology. A central tension exists between **ontic pancomputationalism**—the literal claim that the cosmos is an executing computing machine (e.g., a cellular automaton)—and **epistemic pancomputationalism**, which holds merely that physical systems can be computationally modeled. A further schism divides deterministic computationalists, who insist on fundamental micro-reversibility, from mainstream quantum physicists who treat non-deterministic wave-function collapse and continuous symmetry (Lorentz invariance) as foundational. ### Key Figures, Primary Texts, and Empirical Status * **Edward Fredkin**: Articulated the **Finite Nature Hypothesis** in *"Digital Mechanics"* (1990) and *"An Introduction to Digital Philosophy"* (2003). Fredkin proposed that continuous mathematics (e.g., partial differential equations) is an approximation: *"bits, like binary digits in a computer, correspond to the most microscopic representation of state information"* and state evolution proceeds via discrete time steps on a cellular automaton grid. * **Rolf Landauer**: Formulated **Landauer’s Principle** in *"Irreversibility and Heat Generation in the Computing Process"* (1961) and coined the thesis *"Information is physical"* (1991). He proved that logically irreversible operations (such as bit erasure) require a minimum thermodynamic energy dissipation of $E \ge k_B T \ln 2$. * **Empirical Grounding vs. Speculation**: While Landauer’s erasure limit has achieved mainstream empirical verification in laboratory nanoscale physics, Fredkin’s ontic pancomputationalism remains an unverified, minority hypothesis rejected by mainstream consensus, which relies on continuous quantum field theories and spacetime manifolds. ### Distinctive Concepts * **Discrete Time Mapping**: Instead of a continuous temporal continuum, time updates in discrete, quantized intervals (clock ticks, conceptually aligned with the Planck time). This discrete time step dissolves classical paradoxes of infinite divisibility (such as Zeno’s arrow) and has been analogized in philosophical discourse to Buddhist/Zen atomist doctrines of time (e.g., Dōgen’s *Uji*, or "being-time"), where existence is mapped to discrete, non-continuous moments. * **Finite Nature**: The hypothesis that every finite volume of space-time contains a strictly finite quantity of information and performs a finite number of state transitions. * **Reversible Cellular Automata**: Lattice-based computational models (such as the Fredkin gate and the "Billiard Ball Model") demonstrating that universal computation can occur without informational dissipation, circumventing the thermal penalties of Landauer's limit.

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