Resist conspiracy escalation

When your explanation requires others to have coordinated secretly, apply the razor hard.

Why it works

Conspiracy explanations multiply assumptions exponentially: each additional participant requires an independent assumption that they (a) know the plan, (b) are motivated to maintain silence, and (c) have not made a mistake or defected. The probability of all assumptions holding simultaneously falls sharply with each added participant, making large coordinated conspiracies very improbable compared to simpler explanations.

How to do it

1. List the number of people who would need to know and stay silent for the conspiracy to hold.
2. Ask: what is the simplest explanation that requires no secret coordination?
3. Check whether the simpler explanation fits the observable facts equally well.
4. Reserve the conspiracy explanation for cases where evidence directly rules the simple one out.

Evidence

Research on the mathematical sustainability of conspiracies suggests that large-scale coordinated secrets are inherently fragile — the probability of sustained secrecy drops sharply with group size and time. The Bayesian prior against them is substantial. (mechanistic)

This is a probabilistic argument, not a categorical one. Real conspiracies do occur; the razor increases skepticism proportional to assumed complexity, not to zero.

Sources

• Grimes (2016), "On the Viability of Conspiratorial Beliefs", PLOS ONE — models conspiracy failure rates against group size

Common mistake

Treating absence of evidence against the conspiracy as evidence for it — the razor cuts the other way: absence of evidence against a simple explanation favors it.