A close cousin to impossible rationality, this fallacy demands that an opponent's reasoning process be flawless, complete, and self-contained according to an impossibly strict standard before it can be engaged with. It's the "gotcha" of pointing out that an argument has unstated premises, that it relies on some assumptions, or that it isn't mathematically formalized—as if any human communication could meet such standards. The fallacy lies in using the inevitable gaps and imperfections in all reasoning as an excuse to reject the reasoning entirely, rather than engaging with its substance. It turns the legitimate observation that "no argument is perfect" into the illegitimate conclusion that "therefore no argument is worthwhile."
Example: "He demanded I write my position as a series of formal logical propositions with every premise explicitly stated—a Fallacy of Impossible Reason designed to make conversation so tedious I'd just give up."
by Dumu The Void March 11, 2026
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by Hym Iam January 10, 2026
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by LeSouffleDeVersailles February 21, 2025
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And you can tell because one of us is stalling and the other is demanding that you hurry the fuck up.
Hym Iam "No I'm not the imposter. You are saying that knowing full-well that I am not. I don't know what you are covering for him because his response to this was to lie and make shit up and I was telling the truth, right all along about everything that was, is, and was going to happen, we all watched me be right in real time and what they are doing now is trying to do as much reputation damage as possible and hope that that will supercede the fact that I was right and that they were lying and making shit up to be an obstacle over a conflation they knew I was making cynically and over moral alignment that is irrelevant and a burden of proof I do not have to meet."
by Hym Iam March 26, 2026
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