Clear all
Work #1710

Fragments (Reconstructed)

Posidonius (reconstructed)
c. 1st century BCE (original works); testimonia from 1st c. BCE–2nd c. CE · Ancient Greek
Reconstructed fragments and testimonia · Middle Stoicism

The most learned Stoic, reconstructed from the citations of those he influenced — science, psychology, and cosmic sympathy

Attribute Fingerprint

Rows where works disagree are highlighted in gold. The full ontology grid is shown.

Attribute Fragments (Reconstructed)
Time · Extent Infinite
Time · Ontological Status Substantival
Time · Grain Continuous
Time · Freedom Deterministic
Time · Traversability Cyclical
Time · Dimensionality One
Time · Direction Uni-directional
Space · Extent Infinite
Space · Ontological Status Substantival
Space · Curvature not engaged
Space · Dimensionality Three
Space · Locality Local
Matter · Extent Infinite
Matter · Ontological Status Substantival
Matter · Conservation Conserved
Matter · Dimensionality Three
Matter · Locality Local
Observer · Time Instance Single
Observer · Space Instance Single
Observer · Knowledge Extent Mediated
Observer · Knowledge Retainment Total
Observer · Physicality Embodied
Observer · Agency Active
Observer · Number Plural
Observer · Metaphysical Agency Cosmic-ordering
Observer · Moral Authority Reason
Observer · Theological Method N/A
Energy · Extent Infinite
Energy · Ontological Status Substantival
Energy · Conservation Conserved
Energy · Dispersibility Reversible
Information · Ontological Status Substantival
Information · Cosmic Conservation Conserved
Information · Personal Conservation Non-conserved
Information · Granularity not engaged

Dimension-by-Dimension Evidence

What each work's passages reveal about its stance on each of the six dimensions.

Time

Fragments (Reconstructed)

Stoic cosmic time: infinite, cyclical, deterministic. Posidonius's innovation is the rigour of his empirical engagement with temporal phenomena — astronomical cycles, tidal periodicities, the chronology of human history (his Histories covered 146–86 BCE).

Space

Fragments (Reconstructed)

Posidonius is the most spatially engaged Stoic philosopher. His geographical researches — measurement of the earth's circumference, mapping of climate zones, the study of tides at Gades — treat space as substantival, three-dimensional, and local (specific places have specific properties).

Matter

Fragments (Reconstructed)

Stoic materialism refined by empirical observation. Matter is conserved, corporeal, and interconnected through cosmic sympathy — what happens in the heavens affects what happens on earth, and vice versa.

Observer

Fragments (Reconstructed)

The observer is an embodied, active, scientifically engaged agent. Posidonius insists that the philosopher must observe and measure, not merely reason. Knowledge is mediated by the senses and by the tripartite soul (reason can be overwhelmed by the lower parts). Cosmic-ordering: Logos/Providence governs all.

Energy

Fragments (Reconstructed)

The pneuma that animates and interconnects the cosmos is infinite, conserved, and reversible at the cosmic scale. Posidonius studied its physical manifestations — heat, light, tidal forces — more carefully than any other Stoic.

Information

Fragments (Reconstructed)

Cosmic information is conserved through the eternal recurrence. Personal information is not conserved beyond death. Posidonius's emphasis on cosmic sympathy implies that information (causal influence) propagates across the entire cosmos — the theoretical basis of his naturalistic astrology.

Internal Tensions

Where each work's argument pulls against itself.

Fragments (Reconstructed)

The fragments present a thinker torn between Stoic monism and Platonic pluralism in psychology. Galen champions Posidonius against Chrysippus precisely because Posidonius admits irrational soul-parts — but this admission undermines the Stoic claim that virtue is knowledge and vice is ignorance. The reconstructive nature of the evidence adds a further tension: we see Posidonius only through the eyes of those who quoted him for their own purposes.