 To get a grip on one version of Individualism, recall the Reductionist views discussed in  Section 1.1.  According to Reductionists, testimonial justification consists in an inference that the hearer makes, i.e., the hearer’s inference from the claim that (a) the speaker said that p to the conclusion that (b) p is true. Thus, Reductionists are Individualists in the following sense: they maintain that whether or not a hearer acquires testimonial justification for believing p depends entirely on features having to do with the hearer, where these features include, e.g., the hearer’s perception of the speaker uttering p, the hearer remembering that testimony is generally reliable, and the hearer inferring on these grounds that what the speaker said on this occasion is likely to be true.