We recently established a successful Useful Concepts Repository. It got me thinking about all the useless or actively harmful concepts I had carried around for in some cases most of my life before seeing them for what they were. Then it occurred to me that I probably still have some poisonous concepts lurking in my mind, and I thought creating this thread might be one way to discover what they are.
I'll start us off with one simple example: The Bohr model of the atom as it is taught in school is a dangerous thing to keep in your head for too long. I graduated from high school believing that it was basically a correct physical representation of atoms. (And I went to a *good* high school.) Some may say that the Bohr model serves a useful role as a lie-to-children to bridge understanding to the true physics, but if so, why do so many adults still think atoms look like concentric circular orbits of electrons around a nucleus?
There's one hallmark of truly bad concepts: they actively work against correct induction. Thinking in terms of the Bohr model actively prevents you from understanding molecular bonding and, really, everything about how an atom can serve as a functional piece of a real thing like a protein or a diamond.
Bad concepts don't have to be scientific. Religion is held to be a pretty harmful concept around here. There are certain political theories which might qualify, except I expect that one man's harmful political concept is another man's core value system, so as usual we should probably stay away from politics. But I welcome input as fuzzy as common folk advice you receive that turned out to be really costly.
You're sneaking in connotations. "Morality" has a much stronger connotation than "things that other people think are bad for me to do." You can't simply define the word to mean something convenient, because the connotations won't go away. Morality is definitely not understood generally to be a social construct. Is that social construct the actual thing many people are in reality imagining when they talk about morality? Quite possibly. But those same people would tend to disagree with you if you made that claim to them; they would say that morality is just doing the right thing, and if society said something different then morality wouldn't change.
Also, the land ownership analogy has no merit. Ownership exists as an explicit social construct, and I can point you to all sorts of evidence in the territory that shows who owns what. Social constructs about morality exist, but morality is not understood to be defined by those constructs. If I say "x is immoral" then I haven't actually told you anything about x. In normal usage I've told you that I think people in general shouldn't do x, but you don't know why I think that unless you know my value system; you shouldn't draw any conclusions about whether you think people should or shouldn't x, other than due to the threat of my retaliation.
"Morality" in general is ill-defined, and often intuitions about it are incoherent. We make much, much better decisions by throwing away the entire concept. Saying "x is morally wrong" or "x is morally right" doesn't have any additional effect on our actions, once we've run the best preference algorithms we have over them. Every single bit of information contained in "morally right/wrong" is also contained in our other decision algorithms, often in a more accurate form. It's not even a useful shorthand; getting a concrete right/wrong value, or even a value along the scale, is not a well-defined operation, and thus the output does not have a consistent effect on our actions.
My original point was just that "subjective versus objective" is a false dichotomy in this context. I don't want to have a big long discussion about meta-ethics, but, descriptively, many people do talk in a conventionalist way about morality or components of morality and thinking of it as a social construction is handy in navigating the world.
Turning now to the substance of whether moral or judgement words ("should", "ought", "honest", etc) are bad concepts -- At work, we routinely have conversations about "is ... (read more)