 One of the primary motivations for Reductionism stems from concerns having to do with gullibility; that is, many reductionists maintain that if we could justifiably accept a speaker’s testimony without having positive reasons for thinking that they typically speak the truth, then we would be justified in accepting testimony in cases in which doing so would be clearly irresponsible. So for example, if a hearer does not need positive reasons for thinking that the speaker’s testimony is reliable, then one could be justified in believing the say-so of a random blogger on an arbitrary website so long as one did not have any reasons for doubting the testimony in question.