It usually combines a reference to Bayes Theorem, a deep hubris, and a significantly misunderstood concept from mathematics or technology.
Here, for example, it is clear the author does not grok EMH which applies across the population of trades not traders.
Usually this is done to provide the author or community with some claim to an inherent and unearned extraordinary nature, which justifies greater personal power. (You only need 200:1 evidence you’re extraordinary being the takeaway here.)
It is unclear why certain SV cliques continue to grant these people power.
Their intellectual insularity means that whatever value they once added in bringing logical rigor to conversations is now far outweighed by the train of collective bad logic powering their groupthink.
It is increasingly dangerous to have such people steer important societal debates.
These debates include crypto regulation where EAs famously associated with SBF, to “AI safety”, a field that appears to be invented out of whole cloth to allow LessWrongers to LARP as ML ethics and fairness experts.