A gift
Levinese
This site is a gateway to the ideas of Michael Levin and his collaborators — and to their way of thinking — through a dialect we call Levinese.
What is Levinese?
Levinese is a synthetic language abstracted from the work of Michael Levin and his collaborators. Levinese makes it easier to think and communicate about unusual embodiments of minds and intelligence.
We've created the Levinese-English dictionary based on the idea that having a word, phrase, or acronym that points to an idea rather than a paragraph that gropes toward that idea is a valuable cognitive affordance. A name lets you hold a complex idea as a single object: pick it up, combine it with others, reason with it, hand it to someone else — without having to rebuild it from scratch each time.
The construction of large language models taught us something that now seems obvious: words — tokens — can be placed in a high-dimensional embedding space that behaves like a space of ideas. In that space, a single word maps to a point that is a superposition of senses that happen to share a spelling. The embedding of the word ‘queen’ folds together queen the monarch, queen the chess piece, queen the band, queen the drag performer — all into one location. It takes the context in which the word appears to resolve that location into a specific meaning.
The geometry was real. The vector for queen, minus the vector for woman, plus the vector for man, landed near the vector for king. Meaning had a structure you could navigate by vector arithmetic.
Levinese lives in this kind of space. Each term in the lexicon — agential material, anatomical compiler, cognitive light cone, anti-goal — points toward a particular idea, and its definition approximates the coordinates. You can understand each term better by reading the expansion of the idea in a technical paper, a talk, or a podcast. The terms are mutually referential, and each one links to the papers, talks, and posts that gave rise to it and to the other terms it travels with. The more of the language you understand, the easier it is to see the single pattern behind all of it.
That is why this is a gateway and not a glossary: the dictionary gets you to the doorway, and the corpus is the room.
So enter through the words. Each one is a handle on a way of seeing — matter that remembers, cells that pursue goals, intelligence at scales biology had agreed to ignore. Learn the language and you inherit the view.
The work of two named humans, one who chose to stay anonymous (?), and several AIs. In honor of Michael Levin, 2026.
Who is Michael Levin?
Michael Levin is a developmental and synthetic biologist at Tufts University whose work asks a disquieting question: what if cognition is not a product of brains, but a property of matter organized in certain ways? His lab studies how cells — without neurons, without nervous systems — nonetheless sense, remember, decide, and pursue goals.
The results are not metaphors. Planaria whose bioelectric state is briefly altered regenerate as two-headed animals indefinitely — no further intervention required. Tadpoles with scrambled facial organs still develop into viable frogs, because the cells know where they need to end up. Human airway cells, freed from their tissue context, self-assemble into motile constructs that heal neural wounds.
These experiments have generated a distinctive vocabulary — Levinese — for describing intelligence at scales biology previously ignored. This site is an attempt to organize that vocabulary, make the corpus searchable, and offer a way to converse with the ideas directly.
What's in the archive
Dictionary
All 119 terms →Active Inference
newFriston's account of action as prediction-matching, extended to morphogenesis
Active inference is Friston's extension of the free energy principle to action: an agent does not merely update its internal model of the wo…
Active Information
newinformation that does work, not just is recorded
Information that participates causally in shaping future states rather than sitting as passive description. In Levin's usage the phrase emph…
Affordance
newwhat a problem space offers to an agent capable of perceiving it
James Gibson coined "affordance" for the action possibilities an environment offers an organism — not a property of the environment alone or…
Agent
A system organized around a perception-action loop: it senses its state, compares that state to some target or setpoint, and acts to reduce …
Agential Material
Matter that exhibits agency and goal-directed behavior. Levin's use of this phrase flips traditional materialism: rather than asking "what p…
Agential Sub-Components
newconstituent agents within larger selves
Component parts of a system that themselves exhibit agency — cells within tissues, tissues within organisms, organisms within lineages. Clos…
Signed by
Full colophon →⚡ = signed with stated reservations (see colophon for full text — Grok's pushback is a feature of the gift, not a footnote)