Taking Conspiracy Theories Seriously Without Joining In

The phrase 'conspiracy theory' functions in public discourse as a dismissal. To label a claim a conspiracy theory is, for many people, to signal that it is not worth engaging with — that it belongs to the category of flat-earth beliefs, alien abduction reports, and political paranoia. This response is understandable. Many conspiracy theories are indeed false, sometimes dangerously so. But the dismissal carries a cost: it obscures the fact that some conspiracies are real, and that reflexive rejection of any suspicious claim is just as much a failure of reasoning as reflexive acceptance.

The historical record is unambiguous. The United States government conducted illegal surveillance operations against civil rights leaders and political dissidents for decades under COINTELPRO — a programme that, had it been alleged in advance, would almost certainly have been dismissed as a conspiracy theory. The Watergate break-in and cover-up, orchestrated at the highest levels of the US executive branch, was a real conspiracy. The Tuskegee syphilis study — in which the US Public Health Service deliberately withheld treatment from Black men with syphilis for forty years in order to study the disease's natural progression — was a real conspiracy (Brotherton, 2015, pp. 42–44).

These are not fringe examples. They are mainstream, well-documented history. And they share a feature that matters: they were all, at some point before their exposure, 'conspiracy theories' — suspicious claims about powerful actors behaving covertly and harmfully, dismissed or denied by those in authority.

The genuine challenge

Recognising this creates an intellectual tension. If we refuse to entertain any suspicious claim about powerful actors, we will sometimes be wrong in ways that matter enormously. If we entertain every suspicious claim, we will be overwhelmed by a flood of false narratives, some of which are actively promoted to serve the interests of the very actors they purport to expose.

The challenge this topic addresses is neither cynical rejection nor credulous acceptance. It is the harder work of structured evaluation: asking what evidence would actually establish or refute a suspicious claim, and applying the same standards consistently — regardless of whether the claim appeals to our priors or challenges them.

What this topic covers

The following pages examine what defines a conspiracy theory as a genre, what psychological functions it serves, where the characteristic failure modes of conspiratorial thinking lie, and how to evaluate a suspicious claim without either prejudging it or abandoning critical standards. The goal is a reliable process, not a predetermined verdict.