Only the present is actual, and it is continuously changing.

Dynamic Present Theory, abbreviated DPΦ, is a foundational physics framework built on one posit: only the present is actual, and actuality continuously transforms. It calls this process Continuous Present Actualization, or CPA. What becomes actual changes the conditions for what can happen. DPΦ develops this account through quantum measurement, a rate-based description of gravity, and a tested rate law for slowing in glass-forming liquids.

The past has consequences that are actual now. A footprint changes the sand; a memory depends on an altered brain; a detector leaves a physical record. DPΦ calls a carried, actualized distinction an “inscription” when further interaction can register it as evidence or an operative condition. Earlier events shape what happens through their continuing consequences. Reading a record is a new interaction with what remains. Breakfast isn't waiting somewhere, uneaten: its energy has been transformed, and the dishes are in the sink.

The light reaching your telescope arrives now. It left the star long ago and carries the pattern of the star as it was then. The star has kept changing since; what you measure is present light carrying an earlier configuration.

A water molecule persists as water while moving among other molecules in a flowing droplet. Its defining organization continues even as its surroundings and position change. DPΦ understands physical persistence in this way: atoms, molecules, and larger structures maintain an organized pattern of relations through ongoing activity. Their properties depend on that organization and how it interacts with its surroundings.

Relativity is one of the most precisely tested theories in physics. Its mathematics describes how the measurements of clocks, light signals, and observers in motion relate to one another. DPΦ works with those same measured relationships.

In 1908, Hermann Minkowski showed that these equations become remarkably elegant when time is treated as a fourth dimension, joined with the three dimensions of space in a single geometry: spacetime. Past, present, and future could now be drawn together on one map. Before long, that map was read as saying they are all equally real.

This reading, the block universe, has been widely held for more than a century. It rests on an interpretation, not an observation. A beautiful mathematical map of physical relationships came to be taken for the territory it describes. In DPΦ, the territory is the one continuous, ever-changing NOW.

Within that present, physical processes unfold at different local rates. A clock deep in a gravitational field actualizes at its own local rate, within the same ongoing present. Think of clockwork: one mechanism, each gear turning at its own rate.

Under a stated Newtonian calibration, DPΦ's local rate of actualization, the CPA Rate, recovers the classical tests of gravity in static, weak fields: gravitational redshift, light bending, Shapiro delay, and the precession of Mercury's orbit. Extending it to strong gravity and full relativistic motion is the frontier of the research, and that work is under way. Researchers who would like to join it are welcome to get in touch.

The source, slit arrangement, intervening interactions, and detector together establish the conditions for possible detections. Opening a second slit changes this whole organization: quantum amplitudes can reinforce or cancel, producing bright and dark bands as detections accumulate. DPΦ interprets those amplitudes as phase-sensitive lawful possibilities. Each detection produces one actual record. An interaction that marks the paths changes the joint physical conditions and can reduce interference, even when nobody reads the marker.

DPΦ interprets the wavefunction as a mathematical description of lawful possibilities, including the phase relations responsible for interference. Measurement produces a definite physical result; the projection rule updates the description given that result. In this account, there is no additional physical collapse of already actual alternatives. The current formulation retains the Born rule and standard measurement transformations.

An entangled pair has a joint organization that cannot be reduced to two independent states. DPΦ treats this shared relational organization as physically significant even when its components separate. Measurements produce local records whose correlations follow the joint quantum description. Neither observer can choose an outcome to send a faster-than-light message. The theory’s contribution is its account of what the shared description represents; it retains the established quantum correlation rules.

As a glass-forming liquid cools, molecular rearrangement becomes dramatically slower. The CPA-based hypothesis is that narrowing access to possible rearrangements contributes to this slowing. CPA+C expresses that hypothesis as a five-parameter rate law. Its bounded modulation increases on cooling toward a fitted reference temperature, then saturates; the modeled slowing continues below that point. Comparisons with established equations account for the cost of fitting extra parameters.

The strongest quantitative evidence comes from the glass program, where CPA motivated a reconfiguration hypothesis that led to a rate law and empirical tests. CPA+C outperformed three established equations in the studied salol and boron-trioxide viscosity datasets. In salol, its held-out prediction error was about 48% lower than the nearest comparator on the logarithmic viscosity scale. A cross-observable test identified in advance then found that its viscosity-derived temperature structure also improved the description of molecular reorientation, better than a matched control sharing the same denominator, by 16.3 AIC units, with only the dielectric coefficients fitted. These results support the reconfiguration hypothesis in the tested systems.

Each test must identify the claim at stake and the result that would count against it. For the glass program, examples include a prespecified transfer to another observable that loses predictive performance, failure of the proposed entropy correspondence against independent measurements, or structural data inconsistent with the proposed interpretation of the fitted temperature coordinates. Such results would challenge those specific extensions or mechanisms. A decisive test of the broader foundation requires a quantitative consequence that competing accounts do not share.

DPΦ has a unifying ambition: to describe physical reality through one account of ongoing actualization under constraint. Its present form develops selected mathematical interfaces and an empirically supported rate law. Becoming a complete physical theory would require quantitative accounts of particle properties and interactions, a consistent treatment of quantum and gravitational phenomena together, and successful tests across those domains. A common starting principle provides a direction for that work; the equations and empirical checks must establish how far it reaches.

DPΦ is developed by independent researcher D. S. Gavant, whose inquiry into the nature of reality spans decades. The framework took its current form as Continuous Present Actualization beginning in 2024. The research uses AI systems as working tools and collaborators: for articulating arguments, developing and checking mathematics, writing and testing code, and reviewing manuscripts. Gavant directs the research and takes responsibility for every claim.

The foundational paper, glass study, and reproducibility archives are linked here. The glass records provide data, analysis code, outputs, and validation material.

• Dynamic Present Theory I (latest version)
• Combined glass paper (arXiv)
• Combined glass data and code archive
• Salol dielectric study and reproducibility record

A framework that connects several phenomena through fewer independent assumptions has an explanatory advantage. DPΦ seeks that economy by treating persistence, measurement, and change through the same account of actualization. Parsimony is a reason to investigate the framework and compare its commitments carefully. Empirical confidence grows when its quantitative consequences survive tests, especially when those tests distinguish it from alternatives.

Presentism holds that only the present exists. DPΦ develops a physical research program around continuing actualization and the consequences that existing organization carries forward. An evolving block universe gives becoming a role while retaining the completed past as part of growing spacetime. DPΦ locates the past’s physical influence in its consequences in the actual present.

The paper distinguishes a clock-related rate in its gravity interface from the rate of a specified process, such as molecular rearrangement. Each requires its own physical definition and measurable quantity. The broader account of constraint also concerns which outcomes are possible and how their probabilities are organized. That information cannot generally be reduced to one rate or one universal measure of constraint.

Theta is a finite relational model in which existing organization changes what further relations can form. Its rules produce growth, narrowing possibilities, and depletion without prescribing each phase separately. It gives a calculable illustration of carried consequence and allows proposed rules to be tested against their own results. Its role is formal: evidence about a physical system requires an additional, explicit connection to measurements of that system.

DPΦ I examines how carried context can shape an AI system’s current computation. This offers a setting in which aspects of informational organization can be inspected and tested. Consciousness and personal identity require further definitions and evidence. Broader reflections on AI, meaning, and “math writ live” belong to the separate exploratory Still Logic work.