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The saying goes: “Never offend people with style when you can offend them with substance”. This is the same idea as “weirdness points”: you can only bother people a certain amount before they go away. So if you have something important to bother them about, don’t also bother them in random ways that don’t matter.

In writing about science or rationality, you already risk sounding too nerdy or out-of-touch with real life. This doesn’t matter much if you’re writing about black holes or something. But if you’re writing about social signaling, or game theory, or anything else where the failure mode is sounding like an evil robot trying to reduce all of life to numbers, you should avoid anything that makes you sound even more like that evil robot.

(yes, people on the subreddit, I’m talking about you)

I’m not always great at this, but I’m improving, and here’s the lowest-hanging fruit: if there are two terms for the same thing, a science term and an everyday life term, and you’re talking about everyday life, use the everyday life term. The rest of this post is just commentary on this basic idea.

1. IQ -> intelligence. Don’t use “IQ” unless you’re talking about the result of an IQ test, talking about science derived from these results, or estimating IQ at a specific number. Otherwise, say “intelligence” (as a noun) or “smart” as an adjective.

Wrong: “John is a very high-IQ person” Right: “John is a very smart person”.

Wrong: “What can I do if I feel like my low IQ is holding me back?” Right: “What do I do if I feel like my low intelligence is holding me back?”

Acceptable: “The average IQ of a Nobel-winning physicist is 155”. Acceptable: “Because poor childhood nutrition lowers IQ, we should make sure all children have enough to eat.”

2. Humans -> people. This will instantly make you sound 20% less like an evil robot. Use “humans” only when specifically contrasting with another animal:

Wrong: “I’ve been wondering why humans celebrate holidays.” Right: “I’ve been wondering why people celebrate holidays.”

Acceptable: “Chimpanzees are much stronger than humans.”

3. Males -> men, females -> women. You can still use “male” and “female” as adjectives if you really want.

Wrong: “Why do so many males like sports?” Right: “Why do so many men like sports?”

Acceptable, I guess: “Why do male sports fans drink so much?”

Use “males” and “females” as nouns only if you’re making a point that applies across animal species, trying overly hard to sound scientifically credible, or arguing some kind of complicated Gender Studies point that uses “man” and “male” differently.

Acceptable: “In both rats and humans, males have higher testosterone than females.”

4. Rational -> good, best, reasonable, etc. See eg here. Use “rational” when describing adherence to a good cognitive strategy; use “good” etc for things that have good results.

Wrong: “What is the most rational diet?” Right: “What is the best diet?”

Wrong: “Is it rational to invest in bonds?” Right: “Is it a good idea to invest in bonds?”

Acceptable: “Are more rational people more likely to succeed in politics?” (if asking whether people who follow certain cognitive rules like basing their decisions on evidence will succeed more than those who don’t. Notice that you cannot sensibly replace this with “good” or “best” – “Are better people more likely to succeed in politics?” is meaningless (unless you switch to the moral value of “better”)

5. Optimal -> best. I feel kind of hypocritical for this one because the link above says to replace “rational” with “optimal”. But if you really want to go all the way, repl