Individual life
At the individual level, Input appears in the ordinary architecture of the day: what reaches you first in the morning, how often attention is interrupted, whether meals arrive with any rhythm, whether transitions contain closure, and what the final hours signal to the body.
Small changes can matter because they alter conditions upstream. Morning light, fewer simultaneous channels, a more predictable meal window, a quieter transition, or a clearer edge around work may change several downstream experiences at once.
The point is not purity or withdrawal from modern life. It is to notice which exposures are doing more regulatory work than their surface importance suggests.