“For most of computing history, designers have been the authors of the visible world…But we are entering a new frontier. For the first time, the interface itself thinks. And when it thinks, the rules change”
https://www.suffsyed.com/futurememo/designers-have-to-move-from-the-surface-to-the-substrate
https://www.suffsyed.com/futurememo/designers-have-to-move-from-the-surface-to-the-substrate

Designers Have to Move from the Surface to the Substrate — Suff Syed
Designers once controlled 85% of user experience through interfaces and interactions. Now, with intelligence moving beneath the surface, that control has collapsed to 5%—while the real design decisions happen in training data, system prompts, and model behavior that most designers never see.