Cognitive Scaffold

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MENTAL MODEL · M9434

Strength of Weak Ties

Strength of Weak Ties
CulturemediumSociology
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Updated 2026-08-15

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INTRODUCTION

English translation pending.

CORE DEFINITION

The strength of weak ties is a sociological proposition advanced by Mark Granovetter, holding that ties which are infrequent and emotionally distant are more valuable for information diffusion than strong ties. The core proposition rests on network structure: strong ties cluster within groups where information circulates redundantly, while weak ties bridge between clusters, so they carry information that is genuinely new to the recipient. The key qualification is that weak ties supply reach without trust, so they are effective for discovery and transmission but poor substitutes for the depth and reliability that strong ties provide.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Map Your Ties: separate the close circle from the acquaintances who connect you outward. - Use Ties For Reach: route requests for novel information through bridging contacts. - Keep Both: rely on strong ties for depth and trust, weak ties for discovery.

anchor

Anchor fast decisions

People with similar backgrounds cluster together, so within a close circle almost everyone already knows the same things. A weak tie to someone in a different cluster is the only path by which information crosses between groups, which is why novel information and opportunities arrive disproportionately through them. The bridging position is structural, so its value does not depend on the strength of the relationship itself.

MINIMUM ACTION

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Interpersonal_tiesZH · Explicit
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