# Study 000I Plain-Language Summary

Study `000I` asks whether the operating envelope is fixed or adaptive. The archive now supports the adaptive version more strongly.

Why? Because low-burden outside expression appeared in two very different states. One happened early, before later stabilized running specialization fully formed. The other happened later, inside a deeply embedded mature state. A single fixed support threshold struggles to explain both at once. An adaptive-envelope model explains them more cleanly.