Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M5957

Tokenization

Tokenization
Learn & MetacognitionHigh supportCognitive Science
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

The process of splitting text into the smallest units (tokens) that a model can process. A token can be a character, a word, or a subword. Models do not understand sentences; they only understand the sequence probability of tokens.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

The granularity of information. Your understanding of the world depends on how you "tokenize." Experts can see "chunks," while novices only see "letters." The key to improving cognition is to upgrade the tokenizer in your brain, packaging complex phenomena into larger meaningful units.

anchor

Anchor fast decisions

In NLP, text is split into a sequence of tokens as the minimal semantic/statistical unit for model input (characters, words, or subwords like BPE). The mechanism is "discretization + probabilistic modeling"—the model learns conditional probabilities over token sequences, and token granularity determines capability and cost.

MINIMUM ACTION

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Source support: Explicit

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