The trust we put in others, and in our institutions, is a sociological feature emergent from biology. It is here that predictions first appear. This is the very definition of life and consciousness: without prediction-making and feedback-based correction, neither would exist. Trust reflects the degree to which your internal predictions have matched the external world in the past. From cells to organs to people to institutions, all these are a prediction-making pattern of matter. When predictions fail, trust collapses. Trust rightly applied is the substrate of survival, as survival requires predicting what the environment will offer, at all scales.