Generalized trust is really optimism about building future relationships. [definitional]
Many, maybe even most, claims for generalized trust can readily be restated as claims that, in contexts in which trust generally pays off, it makes sense to risk entering into exchanges even with those whom one cannot claim to trust in the encapsulated-interest sense—because one does not yet have an ongoing relationship with them nor does one have reasons of reputation to trust them. This is not a claim that one trusts those others but only that one has relatively optimistic expectations of being able to build successful relationships with certain, perhaps numerous, others (although surely not with just anyone). If the context is even slightly altered, this conclusion may be wrong, as it is in dealings with con artists who propose quick-profit schemes or, often, with sellers in tourist traps.
DEFINE: Distinguishes encapsulated-interest trust from a weaker, context-dependent optimism about exchange with strangers.
Russell Hardin, Trust and Trustworthiness, loc. 321