The Threshold
limen — Latin, the threshold, the point of entry. sentier — French, the path, the way through. A threshold to cross, and a path once across it.
Every building already crosses a threshold the moment it begins to sense the people inside it. The question is which side of that line it stands on — whether the sensing serves the person, or studies them. Limen Sentier exists to keep the work firmly on the serving side, and to prove that the more humane choice is also the more capable one.
It is easy to collect everything and call it intelligence. It is difficult to attend to comfort, safety, and care while deliberately knowing as little of the individual as the task allows. That difficulty is where the real engineering lives, and it is the path the name points to — the way through, chosen on purpose.
As more of the built world becomes responsive, the default settles quietly into surveillance — not by intent, but by the path of least resistance. Choosing the other path while the conventions are still forming is the most consequential decision available, and the reason this work is worth doing in this moment rather than later.