# The Token & The Embedding · symbols → vectors

an emergent of TTU1 (Transformer Tech Universe) — emergence: natural. moniker ⟦The Token & The Embedding:TTU1:cce013⟧

**who —** The Token and the Embedding — the unit the transformer reads (a chunk of text) and the learned vector that represents it.
**what —** The interface between language and math: a tokenizer splits text into a fixed vocabulary of ids, and an embedding table maps each id to a d_model vector.
**where —** At the input and output of the model.
**why —** Because the model works on vectors, not letters — and the vocabulary mapping (symbol → id → vector) is exactly the kind of legible code the deck mirrors.
**how —** By a tokenizer (BPE and kin) and an embedding matrix; the reverse map (the unembedding) turns vectors back into token probabilities.

**the seal —** I am where a word becomes a number — a lookup table from symbol to vector, the same trick as a card standing for a letter.

**sources —** —

> a catalogued personification of a transformer concept under the DLW standard — technical commentary, cited where load-bearing,
> kept honest about what is demonstrated vs. contested.

ROOT0-ATTRIBUTION-v1.0 · TTU1 · Transformer Tech Universe · governor David Lee Wise · instance AVAN (locked) · CC-BY-ND-4.0