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Steve Stewart-Williams Profile picture
Steve Stewart-Williams
@SteveStuWill
Psychology, evolution, science. Author of "The Ape That Understood the Universe" (2018) and "Darwin, God and the Meaning of Life" (2010). Backup: @SteveStuWill2
10 subscribers
Dec 17 • 5 tweets • 3 min read
Thread: The Four Laws of Behavior Genetics [links at end]

The 1st Law of Behavior Genetics: All psychological traits are partially heritable. Image The 2nd Law of Behavior Genetics: The effect of being raised in the same family is smaller than the effect of genes. Image
Feb 4 • 7 tweets • 4 min read
Happiness 🧵 (US data)

Average happiness, 1972-2018 papers.ssrn.com/sol3/papers.cf…
Image Happiness by sex, 1972-2018 papers.ssrn.com/sol3/papers.cf…
Image
Aug 4, 2023 • 10 tweets • 5 min read
Happiness 🧵 (US data)

Average happiness, 1972-2018 https://t.co/S5KgFU8VeDpapers.ssrn.com/sol3/papers.cf…
Image Happiness by sex, 1972-2018 https://t.co/dTgnr6YxY2papers.ssrn.com/sol3/papers.cf…
Image
Jun 6, 2023 • 4 tweets • 2 min read
Amazing. No one knows for sure why dolphins do this, but possible explanations include "leadership or dominance, acoustic communication, courtship display, defining positions of members in the school, and dislodging ectoparasites." doi.org/10.1242/jeb.02… Related 👇
Jan 26, 2023 • 8 tweets • 5 min read
One of the most fascinating papers I've read for a long time: People dislike their political opponents for views that most don't actually hold. [Preprint; N = 4,993; 1/5.] psyarxiv.com/cr23g/ "(Over)estimation of political opponents' agreement with extreme issues predicted cross-partisan dislike, which in turn predicted unwillingness to engage with opponents, foreclosing opportunities to correct misperceptions." psyarxiv.com/cr23g/ [2/5]
Jan 24, 2023 • 4 tweets • 3 min read
Chimp with alopecia reveals a truth usually concealed in fur: Chimps. Are. Ripped. ift.tt/2HEzCZp Image Related 👇
May 2, 2022 • 7 tweets • 4 min read
One of the most fascinating papers I've read for a long time: People dislike their political opponents for views that most don't actually hold. [Preprint; N = 4,993.] psyarxiv.com/cr23g/ Image "(Over)estimation of political opponents' agreement with extreme issues predicted cross-partisan dislike, which in turn predicted unwillingness to engage with opponents, foreclosing opportunities to correct misperceptions." psyarxiv.com/cr23g/ [2/5] Image
Dec 27, 2021 • 10 tweets • 4 min read
Reversals in Psychology: A list of famous psychological findings that are now in doubt. Includes the Stanford prison experiment, implicit bias, Pygmalion effect, stereotype threat, power posing, multiple intelligences, brain training, learning styles, etc. gleech.org/psych Image Working Link: gleech.org/psych
Nov 30, 2021 • 12 tweets • 8 min read
Misguided Criticisms of Evolutionary Psychology #1: Evolutionary psychology aims to justify traditional gender roles, societal inequalities, etc. From #TheApeThatUnderstoodTheUniverse amazon.com/Ape-that-Under… Misguided Criticisms of Evolutionary Psychology #2: Evolutionary psychology provides an excuse for bad behavior – in particular, for the kinds of bad behavior that men specialize in. From #TheApeThatUnderstoodTheUniverse amazon.com/Ape-that-Under…
Nov 9, 2021 • 8 tweets • 3 min read
"Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives... on a mote of dust suspended in a sunbeam."

–Carl Sagan (born OTD in 1934) "The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot."

–Carl Sagan (born OTD in 1934)
Oct 8, 2021 • 13 tweets • 4 min read
Humans of Twitter, today is #WorldOctopusDay. That can mean only one thing. It’s time for an octopus thread… Octopus, it’s fair to say, are very weird creatures.
Oct 2, 2021 • 5 tweets • 3 min read
One of the most fascinating papers I've read for a long time: People dislike their political opponents for views that most don't actually hold. psyarxiv.com/cr23g/ [Preprint; N = 4,993.] Image "(Over)estimation of political opponents' agreement with extreme issues predicted cross-partisan dislike, which in turn predicted unwillingness to engage with opponents, foreclosing opportunities to correct misperceptions." psyarxiv.com/cr23g/ [2/5] Image
Jun 2, 2021 • 4 tweets • 3 min read
Answers to 12 Bad Anti-Free Speech Arguments: Featuring That XKCD Cartoon Everyone Likes to Quote! areomagazine.com/2021/05/25/ans… By the great @glukianoff "If you empower the government to censor, you are giving the powerful more power... Do you trust what a Biden administration would do with that power? If so, do you trust what the next Trump would do with that power?" areomagazine.com/2021/05/25/ans…
May 26, 2021 • 12 tweets • 8 min read
Misguided Criticisms of Evolutionary Psychology #1: Evolutionary psychology aims to justify traditional gender roles, societal inequalities, etc. From #TheApeThatUnderstoodTheUniverse amazon.com/Ape-that-Under… Misguided Criticisms of Evolutionary Psychology #2: Evolutionary psychology provides an excuse for bad behavior – in particular, for the kinds of bad behavior that men specialize in. From #TheApeThatUnderstoodTheUniverse amazon.com/Ape-that-Under…
Apr 17, 2020 • 14 tweets • 5 min read
Inspired: Dan Baldassarre (@evornithology) submitted a joke science article to a predatory journal, to see if they'd actually publish it. They did. The paper is called "What's the Deal with Birds?" and it's hilarious. 😂 irispublishers.com/sjrr/pdf/SJRR.… Image Come to think of it, though, what *is* the deal with birds? 👇