Redundancy

Michael Reich

Explanation

“Meet on Tuesday, the day after tomorrow” supplies two routes to the same date when the calendar fits. The second route may add no distinct appointment, yet it can expose a mismatch or repair a missed word. The amount of new information and the practical value of an expression therefore require separate questions. Not all redundancy consists of saying the same words again. Agreement patterns and contextual expectations can make parts of a message predictable. Whether removing an element preserves what matters depends on the model, recipient and conditions. An explanation already known to one reader may be essential to another. Conversely, repetition can make an unsupported claim familiar without making it better supported. The entry treats removal as a countertest, not a universal editorial command.

Movement of thought

1. A message supplies overlapping cues to a recoverable content. 2. The analyst distinguishes novelty from predictability and additional support. 3. A shortened version is compared under specified reception conditions. 4. The countertest considers noise, prior knowledge and conflicting cues. 5. The extra feature is retained or removed for a stated communicative reason.

Scientific use case

Shannon's 1948 paper distinguishes the statistical structure of a source from the engineering problem of transmission and discusses redundancy in combating noise. An Atlas study could separately test linguistic reconstruction. It should not treat successful signal recovery as a complete account of interpretation or social trust.

Example

An unfamiliar station displays an exit word, a direction arrow and a pictogram. A visitor can use a remaining cue if another is obscured. If their directions disagree, their overlap helps reveal a fault. This independently constructed scenario illustrates cue relations, not a measured claim about a particular sign system.

Counterexample

Two instructions concerning one meeting need not be redundant: one can specify its time and another its purpose. Repeating a promise in a new setting may also constitute a new commitment. A purely formal count of repeated strings cannot settle the informational relationship.

Distinction

Recurrence is not identical with informational redundancy. Pleonasm and rhetorical tautology are neighbouring stylistic descriptions, not exhaustive models of coding or reception. Familiarity also does not amount to evidence for a claim.

Effect on thought and perception

Concision becomes a choice to justify rather than an unconditional virtue. Readers can ask what an additional expression contributes under actual conditions rather than calling everything predictable useless.

Resonance

An additional cue encounters a trace already established. It may reinforce orientation or expose inconsistency. This experiential account is not a redefinition of the mathematical quantity.

Etymology

English redundancy belongs to the learned family associated with overflowing or excess. Its noun and technical extensions should not be assigned one invented origin date. The semantic image does not itself demonstrate that every additional component is dispensable.

Provenance

DE/EN editorially accepted on 15 October 2026. Historical context, language comparison and source status are shown separately in the full entry.

Cite this entry

Reich, Michael (Hrsg./ed.): „Redundancy“. Atlas der Sprache, AT-ADD-20261015-0022. ATLAS 259, data model 1.6.0. https://atlasoflanguage.com/concept/AT-ADD-20261015-0022

https://atlasoflanguage.com/concept/AT-ADD-20261015-0022

The address remains stable; editorial content may evolve. Editorial reading state: 2026-10-15. Include your access date for precise references.

Guiding question

Which apparently dispensable feature is merely cumbersome, and which provides a useful margin against misunderstanding?

Five coordinate questions

These descriptions explain the entry. They are not yet controlled register values and generate no shared register results.

Where can the process be observed?: Overlapping cues and predictable features of a message.
What happens to the material?: A shortened version is compared under specified reception conditions.
At what level does a change occur?: Information relations, processing and communicative support.
What temporal structure is involved?: Cues may occur together or sequentially; their value depends on reception conditions.
How can the description be tested?: The countertest considers noise, prior knowledge and conflicting cues.

Historical context

The reference article on pleonasm documents evaluative disagreement about excess expression. Shannon supplies a separate twentieth-century mathematical approach. The relationship is a contrast between explanatory questions, not a claim that engineering simply corrected an ancient rhetorical mistake.

Cross-language distinction and terminology

In British employment language redundancy can mean dismissal because a post is no longer needed. That established use falls outside this profile's communication focus. “Unnecessary repetition” captures only one evaluative use and would erase the productive side being examined.

Scholarly relations: explained reading links

Each relation is named and explained. These reading links are neither shared register results nor newly canonised relation edges.

Repetition · Comparison and distinction
Recurrence is not identical with informational redundancy. Pleonasm and rhetorical tautology are neighbouring stylistic descriptions, not exhaustive models of coding or reception. Familiarity also does not amount to evidence for a claim.
Pleonasm · Comparison and distinction
Recurrence is not identical with informational redundancy. Pleonasm and rhetorical tautology are neighbouring stylistic descriptions, not exhaustive models of coding or reception. Familiarity also does not amount to evidence for a claim.
Tautology · Comparison and distinction
Recurrence is not identical with informational redundancy. Pleonasm and rhetorical tautology are neighbouring stylistic descriptions, not exhaustive models of coding or reception. Familiarity also does not amount to evidence for a claim.

Proposed thought pathway