Re:Why I injected myself with an untested gene therapy
by jerf on Wednesday November 22, 2017 @10:55AM
(#15757729)
ad hominem is "He's stupid, therefore he's wrong about some claim."
"He did a stupid thing, therefore he's stupid" is not ad hominem. Inflammatory, subject to a huge debate about definitions, perhaps even wrong? Sure. But if you expand it out reasonably (a sample intervening premise: "People who do stupid things are stupid."), the logic is valid, in the technical sense. To attack the conclusion requires attacking something else about the premises, the most obvious fruitful avenue being the definition of "stupid" in question.
(Although, spoiler, that pretty much ends in "I have my definition and you have yours, and by mine, yes, he's stupid, but by yours, no, he's not.", and as long as we don't mistake the map for the territory and argue as if the definition of "stupid" that is used by someone has any power over the real world, is a perfectly acceptable result.)
(Incidentally, I consider my sample intervening premise up there as stronger than I personally would use the word stupid. I like to think of myself as generally not stupid, but I've done stupid things. Still, with that premise, the argument is logically valid.)
"He did a stupid thing, therefore he's stupid" is not ad hominem. Inflammatory, subject to a huge debate about definitions, perhaps even wrong? Sure. But if you expand it out reasonably (a sample intervening premise: "People who do stupid things are stupid."), the logic is valid, in the technical sense. To attack the conclusion requires attacking something else about the premises, the most obvious fruitful avenue being the definition of "stupid" in question.
(Although, spoiler, that pretty much ends in "I have my definition and you have yours, and by mine, yes, he's stupid, but by yours, no, he's not.", and as long as we don't mistake the map for the territory and argue as if the definition of "stupid" that is used by someone has any power over the real world, is a perfectly acceptable result.)
(Incidentally, I consider my sample intervening premise up there as stronger than I personally would use the word stupid. I like to think of myself as generally not stupid, but I've done stupid things. Still, with that premise, the argument is logically valid.)