Construct · 3 fields · 3 citations

gradualism: one construct, many systems

One name. One construct. Different systems. One map.

● invariant · one tempo, three systems Nearest construct by meaning·not indexed
Darwin took deep-time gradualism from Lyellreformists borrowed the evolution-not-revolution framinggradualism3 SYSTEMSGeological gradualismLYELL · DEEP TIMEPolitical gradualismBERNSTEIN · REFORMPhyletic gradualismELDREDGE & GOULD · 1972

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2026

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Geology

The Earth is shaped by slow, present-day processes

In geology, gradualism is the doctrine that the Earth's features are produced by the same slow, ordinary processes seen acting today (erosion, deposition, uplift) accumulated over immense stretches of time, rather than by sudden catastrophes. Lyell's Principles of geology (1830–1833) made this the working assumption of the science and supplied the deep-time framework it needs. The construct is big change as the sum of many small, steady increments; it is the same tempo that reappears in how species and how societies are held to change.[1]

Unit
The slow, cumulative rate of change in landforms over geological time
Recovery means
Not applicable
Measured by
Supported by observed present-day process rates extrapolated across the stratigraphic and geochronological record

Political theory

Reform by increments, not revolution

In political theory, gradualism is the position that lasting social change is best reached by incremental, lawful reform rather than by abrupt revolution, each step consolidating before the next. Bernstein's The preconditions of socialism (1899) argued the reformist, evolutionary road against revolutionary rupture, borrowing the language of evolution itself. It is the same construct (large change built from accumulated small steps over time) realised in institutions and policy rather than rock strata or lineages.[2]

Unit
The pace and size of successive incremental reforms toward a social goal
Recovery means
Not applicable
Measured by
Traced by the sequence and magnitude of incremental policy or institutional changes over time

Evolutionary biology

Species change by slow steady accumulation

In evolutionary biology, phyletic gradualism is the view that new forms arise by slow, steady, gradual transformation spread across whole lineages, so that the fossil record should show smooth intermediate series. Eldredge and Gould's 1972 Punctuated equilibria: An alternative to phyletic gradualism named this orthodox position precisely in order to contrast it with long stasis broken by rapid change. It is the same slow-accumulation tempo found in Lyell's Earth and in reformist politics, here applied to morphological change through time.[3]

Unit
The slow, roughly constant rate of morphological change within a lineage
Recovery means
Not applicable
Measured by
Tested against stratigraphic series for smooth, directional change versus stasis punctuated by rapid shifts

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Nearby constructs

punctuated equilibrium1 fields · 2 citationsanchor · a standalone constructconstruct6 fields · 7 citationsjingle · one name, six constructscontrast4 fields · 4 citationsjingle · one word, four constructs

References

  1. Lyell, C. (1997). Principles of geology (J. A. Secord, Ed.). Penguin Books. (Original work published 1830–1833) ISBN 9780140435283
  2. Bernstein, E. (1993). The preconditions of socialism (H. Tudor, Ed. & Trans.). Cambridge University Press. (Original work published 1899) ISBN 9780521398084
  3. Eldredge, N., & Gould, S. J. (1972). Punctuated equilibria: An alternative to phyletic gradualism. In T. J. M. Schopf (Ed.), Models in paleobiology (pp. 82–115). Freeman, Cooper. ISBN 9780877353256

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