Trust reduces to knowledge while trustworthiness is motivational

Evidence

In general, the complexity of the problem of trust derives primarily from the complexity of the problem of trustworthiness. As this chapter demonstrates, the motivations for being trustworthy are manifold. In a sense, trusting someone in some context is simply to be explained as merely the expectation that the person will most likely be trustworthy. Trust is little more than knowledge; trustworthiness is a motivation or a set of motivations for acting. — Russell Hardin, Trust and Trustworthiness, 178

Categorization

• DEFINE: Hardin’s central distinction: trust is epistemological (an expectation derived from knowledge), trustworthiness is motivational. This is the conceptual pivot for the whole book.
• XREF: Directly relevant to the reader’s stated purpose: Hardin’s trust-as-knowledge parallels Luhmann’s familiarity as a baseline, and the doctor’s wife’s trust in Blindness depends on her knowledge—inverting the epistemic asymmetry.