Intentions Do Not Cross Doorways: A Transmission Coefficient for the Domestic Threshold, from 11,904 Self-Recorded Passages, with an Aperture Law and a Recovery Protocol

Go upstairs for the scissors and you will arrive without the reason. The reason is not lost. It is downstairs, in the room where you formed it, and it is still there when you go back — which is why going back works, and why no account that destroys the intention at the doorway has ever explained the remedy that everybody already uses. We take the folk procedure at its word and treat an intention as a localised excitation of the room in which it arises, and a doorway as a potential barrier it must tunnel in order to accompany a walker out. The account is testable, because barrier transmission has a shape: amplitude falling as $e^{-2\kappa a}$ makes log-transmission linear in the depth of the wall the doorway is cut through — a quantity no memory experiment has ever recorded, because on the received account it cannot matter. Because an intention has no third-person signature, the investigator was the instrument: one dwelling, fourteen thresholds surveyed blind, six phases of heuristic inquiry, four years of timed passages. The aperture law holds, with $\kappa =4.9{\mathrm{m}}^{-1}$ (95% CI $4.6$–$5.2$); doubling the errand steepens it by the predicted $\sqrt{2}$; and returning to the origin room recovers the intention in 94% of failures, because transmission, unlike destruction, takes nothing away from the room it leaves. You did not forget. You left it in the other room.