thumb|right|W. Ross Ashby's homeostat
The homeostat is one of the first devices capable of adapting itself to the environment. It exhibited behaviours such as habituation, reinforcement and learning through its ability to maintain homeostasis in a changing environment. It was built by William Ross Ashby in 1948 at Barnwood House Hospital.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).