Steve Stewart-Williams

@SteveStuWill

Psychology, evolution, science, etc. The paperback edition of my second book, The Ape That Understood the Universe, hit the shelves in 2019.

United Kingdom
Vrijeme pridruživanja: travanj 2009.

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  1. Prikvačeni tweet

    It's out! The paperback edition of my book, THE APE THAT UNDERSTOOD THE UNIVERSE, featuring a new foreword by . You can read the first chapter here: ...and here's a sample of reactions to the book... 👇

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    prije 13 sati

    How well can we predict educational attainment and IQ using DNA? This Figure summarizes the progress that is being made in the predictive power of polygenic scores by increasing GWAS sample sizes. Source: (nice work et al)

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  4. Original Article: People who use alternative therapies are more likely to refuse conventional treatments. As a result, they have lower survival rates. (N = 1,901,815) Note that the researchers controlled for cancer type, clinical stage, comorbidities, etc.

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  5. People who use homeopathy and other alternative therapies as part of their cancer treatment are twice as likely to die from the disease as those who use conventional medicine alone.

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  7. One of the most important events in the history of the planet – an event that caused forests to turn into fields, skyscrapers to sprout from the ground, and footprints to appear on the moon. And we don't really know what drove it! Figure:

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  8. An aluminium-foil boat floating in sulfur hexafluoride: a colourless gas that's heavier than air (and that makes your voice deeper if you breathe it in – it's basically the opposite of helium).

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    2. velj

    2- Other methods for estimating heritability don’t rely on the EEA, or on twins at all, but on random variation in the extent of genomic sharing between siblings. And guess what! Heritability doesn’t go away!

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    1- Twins are regularly misclassified by their parents & others, which creates an opportunity to test whether their phenotypic similarity tracks their actual genetic relatedness or their social identity as MZ or DZ. It’s the former (by )

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    I can think of few things less “lively” than rehashing a conversation about the EEA, especially since twin studies are no longer the major workhorses of psychiatric genetics. BUT lest other people be confused that this is still actually a contentious issue....

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  13. 3. velj

    Another viral animal video that makes me wonder whether psychologists have been seriously underestimating the cognitive abilities of our furry cousins.

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  14. 3. velj

    The evolution of intelligence in humans and other great apes, estimated by blood flow to the brain. All the great apes have gotten smarter since our last common ancestor; we've just taken the trend much further.

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  15. 3. velj

    Ants are some of the most bizarre, fascinating creatures on the planet.

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    An important study and inspiring finding on how to reduce bigotry by "deep canvassing" and giving people "grace," rather than anger or shame. From and , summarized by :

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    1 fascinating study Klein quotes found that “priming white college students to think about the concept of white privilege led them to express more racial resentment in subsequent surveys.” Anti-racist indoctrination actually feeds racism—tribalism deepens

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  18. 2. velj

    A pufferfish deflating. When threatened, pufferfish rapidly suck in enough water to make themselves much larger and harder to eat: a great big inedible ball. As a backup plan, most also contain tetrodotoxin, which for humans is 1,200 times deadlier than cyanide. Cute, though!

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    A man was sitting alone, on a bench in a park, singing Bon Jovi's Living on a Prayer by himself. By the end, the entire park joined along to sing with him. (🎥)

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  20. 2. velj

    Natural selection builds mechanisms that human engineers still struggle to match. Exhibit A: The neural structures underpinning head stabilization in this hawk. (Head stabilization has the same function as image stabilization in cameras: to maintain a steady view despite motion.)

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    1. velj

    A great way to realise the sheer quantity of information our 🧠 seamlessly processes when we do a “simple” task like driving a car. This is what the Tesla autopilot sees using a neural network which took 70,000 GPU hours to train. ht

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