 Conceptually fundamental to trust is the notion of a person (or persons)—the truster—trusting in some agent or agency—the trustee—for some (assumedly) favourable outcome (though what the trustee is trusted for is often only implicit in the context). Trust involves a venture; so too—it is widely agreed—does faith. So, if faith is trust, the venture of faith might be presumed to be the type of venture implicated in trust. A venture is an action that places the agent and outcomes of concern to the agent significantly beyond the agent’s own control. Trust implies venture. When we trust we commit ourselves to another’s control, accepting—and, when necessary, co-operating as ‘patient’—with the decisions of the trustee. Venturing in trust is usually assumed to be essentially risky, making oneself vulnerable to adverse outcomes or betrayal. Swinburne makes the point this way: ‘To trust someone is to act on the assumption that she will do for you what she knows that you want or need, when the evidence gives some reason for supposing that she may not and where there will be bad consequences if the assumption is false’ (2005, 143). Annette Baier makes no requirement for evidence that the trustee may prove untrustworthy, but nevertheless takes trust to involve ‘accepted vulnerability to another’s possible but not expected ill will (or lack of good will) toward one’ (Baier 1986, 235, our emphasis). Accordingly, it seems sensible to hold that one should trust only with good reason. But if, as is plausible, good reason to trust requires sufficient evidence of the trustee’s trustworthiness, reasonable trust appears both to have its venturesomeness diminished and, at the same time, to become more difficult to achieve than we normally suppose. For we often lack adequate—or even, any—evidence of a trustee’s trustworthiness in advance of our venture, yet in many such cases we suppose that our trust is reasonable (see, for example, Adams 1987). But, if adequate evidence of trustworthiness is not required for reasonable trust, how is reasonable trust different from ‘blind’ trust?