In this paper, we reconsider the notion of epistemic trespassing and attempt to explore possible scenarios in which it could lead to positive outcomes in scientific research and information dissemination. As we will point out, some of the significant discoveries in the history of science would not have been possible were it not for the epistemic trespassers, whose shift in paradigm changed the approach to specific issues for the better. Furthermore, we will present instances where individuals, often labeled as ‘trespassers’ (...) – those who venture into fields outside their expertise – can be considered trustworthy and reliable sources of testimony. Consequently, epistemic trespassing turned out to be essential for the advancement of science. Epistemic trespassing in our age is virtually inevitable – whether it be from a political perspective (to preserve democratic values) or due to purely practical reasons (i.e. searching for information online). There are interdisciplinary fields where a strictly negative characterization of epistemic trespassing would question their methodology since these disciplines rely on experts from various fields. For these reasons, we advocate for a more charitable approach to epistemic trespassing and greater public education to help them distinguish between correct and false information. (shrink)

An epistemic trespasser is someone who lacks expertise in a domain yet expresses an opinion about its subject matter based on their own assessment of the evidence. Epistemic trespassing is prima facie problematic, but philosophers have argued that it is appropriate when the trespasser possesses relevant skills and evidence. We argue that this defence is available to epistemic trespassers more often than most philosophers have recognized, but it does not vindicate trespassing. The justified trespasser must also possess an appropriately refined (...) sense of how and to whom they ought to defer, with ‘deference’ understood as taking opinions and the shape of debates very seriously in deliberation, and as appropriate caution in dissent. This sense of what we call the guardrails is constituted largely by a kind of know-how, which arises from long experience in a domain: the epistemic trespasser almost always lacks this know-how. (shrink)