In this article
- The question behind the comparison
- The single-source and nested-time proposal
- The comparator’s explanatory structure
- The precise agreement and difference
- Worked example: what follows and what does not
- What this comparison contributes
The present and the becoming of the world: SMM/DTT and Eternalism and the block universe
An eternalist can explain why every observer experiences a local now by locating the observer’s state within a complete history. DTT asks whether that explanation omits the production of the state itself. The comparison develops this distinction through a worked example and explains its implications for SMM/DTT’s nested generation, completed records and account of the observable world.
01The question behind the comparison
The present can mean an ontologically privileged reality, the event at which an observer is located, or the interval integrated into current experience. These meanings often overlap in ordinary speech but play different roles in a theory. SMM/DTT places outer completion at the transition between generative activity and accessible actuality. Its distinctive possibility is to explain the present through the constitution of records rather than take a moving instant as primitive. Whether this yields a universal present or only local completed events remains a further question.
A becoming theory must explain both novelty and continuity. If each completion is entirely independent, the world lacks inherited structure. If every completion is simply the unveiling of a fully fixed history, the theory may be closer to a block interpretation than its language suggests. DTT can articulate an intermediate construction in which lawful retained memory constrains new completions without making earlier physical tokens persist unchanged. The present would then be a dynamically sustained interface between inherited relations and newly accessible events. The proposal gains content through its memory rule.
The six inner levels belong within that interface. They are not six past moments traversed before reaching a seventh ordinary moment. Nesting expresses how the capacities required for a completed observable world depend on one another. A reader should therefore distinguish a symbolic diagram of completion from a physical claim about how long the present lasts. Neither the duration of conscious experience nor the resolution of an atomic clock follows from the number of nested roles. Those quantities require separate models of observers and physical clocks.
02The single-source and nested-time proposal
SMM begins with one nonspatial generative source. DTT distinguishes its inner production from the outer order in which completed results become accessible. The six inner levels are nested functional dependencies within that production; the seventh denotes outer completion. They are not six independent clocks, six spatial directions, or six simultaneously occupied temporal axes. This distinction makes the framework more specific than a general claim that everything changes: it asks how a world of persistent relations can be generated before its spatial representation is taken for granted. [2]
03The comparator’s explanatory structure
Eternalism treats events at different times as equally real. A block representation displays a history as a spacetime whole. Relativistic geometry provides powerful reasons to be careful about a universal present, but it does not by itself prove every metaphysical claim associated with eternalism. An eternalist can describe local causal processes, change and the internal experience of time without supposing that objects are motionless within each event.
A complete trajectory is a relation among positions and clock readings. Representing all its points together does not eliminate the difference between walking and standing: the trajectories remain different. The relevant issue for DTT is whether generation adds a physically consequential relation that a complete history omits, or instead offers an explanation of how such a history is constituted. A block description can contain all the records an observer ever accesses. It need not contain an additional moving spotlight. This makes completion, rather than the mere presence of change, the sharp point of comparison. [1]
04The precise agreement and difference
An eternalist can explain why every observer experiences a local now by locating the observer’s state within a complete history. DTT asks whether that explanation omits the production of the state itself. This is the central disagreement: is presentness exhausted by perspective and record access, or does completion constitute new actuality? The presence of changing experiences in a block does not settle it.
DTT’s strongest contribution would connect actualization with a nonarbitrary source law that also explains stable physical relations. If the source merely reproduces an independently specified block one frame at a time, little has been gained. If it selects the possible histories and their record structure, it offers a constructive explanation even before its ontology is accepted. The six nested levels should therefore be assessed through their constraints on completion. This comparison avoids treating eternalism as the claim that nothing happens and treats DTT’s becoming as a serious question about explanatory priority. Any empirical distinction must still be stated through observable differences generated by a particular model. [1]
05Worked example: what follows and what does not
Imagine a ledger that records a sequence of transactions. At stage n it contains a stable history and a pending transaction whose validity depends on that history. At stage n+1 the transaction is accepted and can constrain later entries. The ledger’s current accepted state is a precise analogue of a completion boundary. Yet the analogy leaves open whether the future ledger already exists, whether old physical pages remain, and whether acceptance takes a definite duration. These are additional ontological or physical commitments. The example shows both the appeal and the limitation of identifying the present with completed accessibility.
06What this comparison contributes
The comparison becomes productive when it asks what a present does in the theory. Does it select what exists, what can cause later records, or what an observer can currently know? DTT has an unusually direct route to the second and third questions because completion and retention are central to its vocabulary. A successful account of the first would require a coherent ontology of uncompleted possibilities and of the past. This division allows philosophical ambition and operational precision to reinforce one another.
THE SAME QUESTION, DIFFERENT STARTING POINTS
The comparison at a glance
| Question | SMM/DTT | Eternalism and the block universe |
|---|---|---|
| Explanatory starting point | DTT interprets completion as the boundary at which generated relations become available to constrain subsequent events and observations. | A complete history can contain change, causal relations and observers with changing records. |
| Key distinction | A boundary of completed access does not by itself decide whether past events remain existent or future events are already real. | An eternalist can explain why every observer experiences a local now by locating the observer’s state within a complete history. |
KEEP THE CONNECTION
Key ideas
- DTT interprets completion as the boundary at which generated relations become available to constrain subsequent events and observations.
- DTT’s strongest contribution would connect actualization with a nonarbitrary source law that also explains stable physical relations.
- A boundary of completed access does not by itself decide whether past events remain existent or future events are already real.
Continue on SMONAD
- What is Time? →
Connects this comparison with the author’s discussion of present.
- The Discrete Nature of Time →
Connects this comparison with the author’s discussion of present.
- The Principle of Ever-renewed Creation →
Connects this comparison with the author’s discussion of present.
- Observer and record: making observation part of the model →
Connects this comparison with the author’s discussion of present.
- Duality of Time Theory →
Connects this comparison with the author’s discussion of present.
Sources and further reading
References support the comparator and the specific mathematical or interpretive claims indicated. SMM/DTT connections are developed in the analysis above.
- H. Minkowski, Space and Time (1908), English translation in The Principle of Relativity ↗Primary relativity texts; geometrical spacetime does not alone decide the metaphysics of temporal passage.
- Mohamed Haj Yousef, The duality-of-time postulate, SMONAD ↗Author’s presentation of SMM/DTT; source ontology and nested inner generation distinguished from outer completion.
How these comparisons distinguish premises, results and physical claims