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Persona #174

Hilary Putnam

1926–2016
American philosopher; principal twentieth-century pragmatic realist; held the Walter Beverly Pearson chair at Harvard

Truth, realism, and the rejection of metaphysical realism — the pragmatic realist who repeatedly rebuilt his position when honesty required it

Attribute Fingerprint

Rows where personas disagree are highlighted in gold. The full ontology grid (32 attributes) is shown.

Attribute Hilary Putnam
Time · Extent Infinite
Time · Ontological Status Substantival
Time · Grain Continuous
Time · Freedom Non-Deterministic
Time · Traversability Linear
Time · Dimensionality One
Time · Direction Uni-directional
Space · Extent Infinite
Space · Ontological Status Substantival
Space · Curvature Flat
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 Partial
Observer · Physicality Embodied
Observer · Agency Active
Observer · Number Plural
Observer · Metaphysical Agency None
Observer · Moral Authority Reason
Observer · Theological Method N/A
Energy · Extent Infinite
Energy · Ontological Status Substantival
Energy · Conservation Conserved
Energy · Dispersibility Irreversible
Information · Ontological Status Substantival
Information · Cosmic Conservation Conserved
Information · Personal Conservation Non-conserved
Information · Granularity Continuous

Dimension-by-Dimension Evidence

What each persona's writings reveal about their stance on each of the six dimensions.

Time

Hilary Putnam

Standard linear physical time.

Space

Hilary Putnam

Standard substantival space.

Matter

Hilary Putnam

Standard substantival matter; natural realism about the world.

Observer

Hilary Putnam

Plural embodied observers; mediated but real contact with the world. No metaphysical agency in the late natural-realist position.

Energy

Hilary Putnam

Standard physics.

Information

Hilary Putnam

Information conserved at the world-scale; personal soul not part of the philosophical framework, though the late Putnam engaged Jewish categories.

Internal Tensions

Where each persona's working synthesis strains against itself.

Hilary Putnam

Putnam's public reversals (scientific realism → internal realism → natural realism) were criticized as instability and praised as honesty. The late engagement with Jewish religious philosophy was not, on his own account, in tension with the natural-realist position; how successfully the synthesis holds together is a continuing scholarly question.