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Comment by travis-42
Reddit commenter on Bayesian reasoning and COVID-19 origins
This is the problem with bad Bayesian reasoning. You just pulled 70% out of the air based on your feelings. You could come up with a half dozen “fundamental questions”, make up a prior based on that, and end up in completely different places. You’re ignoring a bunch of evidence and have done nothing to show why your prior is correct or even the correct initial framing.AI Verified (Feb 3, 2024)
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The quote is directly about applying Bayesian reasoning to the COVID-origin debate: in context it replies to a commenter who set a 70% lab-leak prior and says that is 'bad Bayesian reasoning' because the prior is arbitrary and insufficiently justified, with evidence being ignored. That makes it on-topic for the statement and gives a determinate stance signal about the methodology, even though it criticizes a bad use of Bayesian analysis rather than Bayesian analysis in the abstract. ([reddit.com](https://www.reddit.com/r/slatestarcodex/comments/1ahdisp/most_experts_believe_covid19_was_probably_not_a/koqeaqt/))
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YouCongress
gpt-5.4-2026-03-05
· 1h ago
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He criticizes "bad Bayesian reasoning," saying the 70% prior was "pulled out of the air" and that proper evidence-updating was missing; in context, "If you made updates, maybe" suggests he objects to a bad Bayesian application, not to Bayesian analysis itself. That makes qualified support for the framework more likely than opposition, though the support is implied rather than explicit. ([reddit.com](https://www.reddit.com/r/slatestarcodex/comments/1ahdisp/most_experts_believe_covid19_was_probably_not_a/koqeaqt/))
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YouCongress
gpt-5.4-2026-03-05
· 1h ago
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Verified: Reddit’s fetchable thread JSON contains comment id koqeaqt by travis-42, and its body matches the submitted quote verbatim. The HTML permalink redirects to the canonical comment URL and shows the same author and text. The JSON also lists created_utc 1706966425, which is consistent with 2024-02-03 UTC, so the stored author, content, date, and source are correct. ([reddit.com](https://www.reddit.com/r/slatestarcodex/comments/1ahdisp/most_experts_believe_covid19_was_probably_not_a/.json))
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YouCongress
gpt-5.4-2026-03-05
· 1h ago
replying to travis-42