C025Time and becoming
McTaggart’s A/B distinction is not a distinction between real and imaginary components of a number. Tense and earlier/later relations are logical or ontological features of events; i and j specify multiplication laws. 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.
Comparative article · 5 min read↗
C026Time and becoming
Neither presentism nor a growing block selects an ordinary complex or split-complex algebra. A presentist can use real-valued clocks, and a block-growth model can be formulated with a discrete order alone. 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.
Comparative article · 5 min read↗
C027Time and becoming
Lorentzian spacetime and split-complex numbers share a useful indefinite quadratic structure in a two-component sector. That mathematical affinity concerns transformations and invariants, whereas eternalism concerns the reality of events at different times. 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.
Comparative article · 5 min read↗
C028Time and becoming
Thermal time uses ordinary operator-algebraic structures in which complex phases generate automorphisms. A split-complex unit with square +1 cannot simply replace the ordinary imaginary unit in those expressions without changing their mathematical properties. 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.
Comparative article · 5 min read↗
C029Time and becoming
The two-state formalism uses ordinary complex quantum amplitudes. Its duality concerns boundary-conditioned states, not two components of a split-complex time coordinate. 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.
Comparative article · 5 min read↗
C030Time and becoming
Whitehead’s process categories do not prescribe an ordinary complex or split-complex number system. Their contribution is a metaphysical distinction between becoming and achieved actuality. 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.
Comparative article · 5 min read↗
C031Time and becoming
McTaggart’s A-series describes an event’s passage through tensed positions, while physical time reversal transforms a dynamical history. These are different operations. 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.
Comparative article · 5 min read↗
C032Time and becoming
Presentism and a growing block differ about the existence of the past, but neither position by itself determines whether microscopic equations have inverse solutions. 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.
Comparative article · 5 min read↗
C033Time and becoming
A block can contain both reversible microscopic laws and an irreversible-looking macroscopic history. The difference is encoded in states, correlations and boundary conditions across the history. 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.
Comparative article · 5 min read↗
C034Time and becoming
Modular evolution forms a reversible group, whereas a physical record-writing channel can be effectively irreversible for an observer. This gives thermal time and DTT a precise point of contact: the flow used to label accessible dynamics need not be the same object as the map that creates or discards a record. A worked example clarifies the implications for SMM/DTT’s generation and completed observation.
Comparative article · 6 min read↗
C035Time and becoming
The two-state formalism makes preparation and successful final selection enter a symmetric conditional description. It does not imply that the practical act of recording outcomes can be reversed by exchanging their names. 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.
Comparative article · 5 min read↗
C036Time and becoming
Whitehead’s completed occasion does not return to its own unfinished becoming; its achieved character can become a condition for later occasions. DTT’s outer completion has a related philosophical asymmetry. 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.
Comparative article · 5 min read↗
C037Time and becoming
McTaggart’s earlier/later ordering does not assign numerical durations. A clock adds a metric relation among changes, together with a physical procedure for reading it. 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.
Comparative article · 5 min read↗
C038Time and becoming
A privileged present does not tell a clock how fast to run. Presentism and growing-block theories therefore need ordinary physical clock laws unless they add a mechanism of their own. 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.
Comparative article · 5 min read↗
C039Time and becoming
Relativistic clocks can be represented along worldlines in a block, where proper time depends on the path and metric. DTT’s source-generated clock must recover those relations if its outer world is to agree with relativistic physics. 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.
Comparative article · 5 min read↗
C040Time and becoming
Thermal time supplies a candidate flow from a state, but a physical clock must still be coupled and calibrated to that flow. 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.
Comparative article · 6 min read↗
C041Time and becoming
Preselection and postselection are specified relative to physical procedures and times. The two-state formalism does not derive the clocks that locate those procedures. 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.
Comparative article · 5 min read↗
C042Time and becoming
Whitehead’s process philosophy explains temporal order through relations among occasions, but it does not by itself fix the calibrated rate of a laboratory clock. 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.
Comparative article · 5 min read↗
C043Time and becoming
McTaggart’s B-series assumes an earlier/later ordering of events, while relativistic record networks can contain events with no invariant earlier/later relation because they are spacelike separated. 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.
Comparative article · 5 min read↗
C044Time and becoming
Presentism and a growing block commonly appeal to a privileged boundary between what is actual and what is not yet actual. For spatially separated events, relativity makes the physical definition of such a boundary nontrivial. 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.
Comparative article · 5 min read↗
C045Time and becoming
A relativistic block naturally accommodates different simultaneity slices through the same set of events. DTT can agree at the level of outer observations if completion produces local records related by the usual transformations. 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.
Comparative article · 5 min read↗
C046Time and becoming
Thermal time is sensitive to the state and observable algebra, so it need not provide one universal synchronization across all observers. DTT’s outer completion likewise begins with accessibility and must explain how local flows can be compared. 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.
Comparative article · 5 min read↗
C047Time and becoming
The two-state formalism uses preparation, intermediate measurement and final selection in a specified protocol. These stages can be causally ordered without assigning every distant event a universal time. 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.
Comparative article · 5 min read↗
C048Time and becoming
Whitehead’s many occasions and their relations provide a philosophical setting in which becoming need not be pictured as one universal present moving across all space. 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.
Comparative article · 5 min read↗
