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    Clearer Thinking

    clearerthinking.org · Company blog · on HN since 2016

    Clearer Thinking, a site that offers rationality tools and runs studies on topics like astrology, correlations, and the Mandela effect.

    Visit blogHN submissions
    RationalityPsychologyScience
    What HN says

    HN commenters recommend it as a place to start for rational thinking tools and bias tests, and discuss its astrology study, which found chance-level results.

    Stats for nerds
    29HN people shared it
    44linked in comments
    981story points
    Nov 2024last shared
    2016people per year2024

    Top posts on HN

    1. 1
      Interested in improving your relationships? Try Nonviolent Communication
      1 person · 842 points · first shared 2019 · 337 comments on HN
    2. 2
      Does Astrology Work?
      1 person · 21 points · first shared 2024 · 183 comments on HN
    3. 3
      Social Justice Advocates vs. the Left-Leaning “Anti-Woke” Community
      1 person · 13 points · first shared 2021 · 2 comments on HN
    4. 4
      Believing you only have one option is dangerous
      1 person · 12 points · first shared 2025 · 3 comments on HN
    5. 5
      How to begin living more rationally
      1 person · 10 points · first shared 2024 · Discussion on HN
    6. 6
      Predicting your sex based on 36 questions about your personality
      1 person · 10 points · first shared 2021 · 5 comments on HN
    7. 7
      How to think clearly about correlations
      2 people · 7 points · first shared 2024 · Discussion on HN
    8. 8
      Can astrologers gain insights about people from astrological charts?
      5 people · 6 points · first shared 2024 · 1 comments on HN
    9. 9
      How to read a paper, and tell whether it's bullshit
      1 person · 5 points · first shared 2025 · Discussion on HN
    10. 10
      We tested the predictive power of astrology. Here are the results
      2 people · 4 points · first shared 2024 · 2 comments on HN

    What HN people wrote when they linked it

    • jonwisemanAug 2024

      So, yeah, but an interesting chunk of results: is the inter-rater agreement ACTUALLY random?

      (Not sure if this is formatted correctly, feel free to comment if you'd do these stats differently)

      from scipy.stats import binomtest # stats: {experience_level: (rate, num_in_group)} stats = { "lvl1": (20.5, 156), "lvl2": (22.2, 66), "lvl3": (23.3, 50), "lvl4": (21.2, 39), "lvl5": (20.8, 12), "lvl6": (28.3, 5), } for lvl, (rate, num) in stats.items(): num_tests = num * (num - 1) res = binomtest(int(rate * num_tests * 0.01), num_tests, 0.2, alternative="greater") # with multiple comparison correction with bonferroni print(f"{lvl}: p-value = {res.pvalue:.4f} {'*' if res.pvalue < 0.05 / 6 else ''}") print('* indicates p-value is < 0.05 after bonferroni correction') """ lvl1: p-value = 0.0276 lvl2: p-value = 0.0002 * lvl3: p-value = 0.0000 * lvl4: p-value = 0.1337 lvl5: p-value = 0.4826 lvl6: p-value = 0.3704 * indicates p-value is < 0.05 after bonferroni correction """ So maybe there's an internal consistency in how these people are trained, and maybe it's not completely dependent on skill level. This is assuming I read the…

    • cutemonsterNov 2024

      > > twin studies and they have taken in serious beating in the past decade, especially in light of GWAS.

      Here's a twin study from 2015, newer than the books (Clean Slate etc) and papers you (David) mentioned.

      "Thinking positively: The genetics of high intelligence" https://pmc.ncbi.nlm.nih.gov/articles/PMC4286575/

      Figure 3 indicates that intelligence is pretty strongly inherited, and they arrive at 0.44.

      Now you're saying that that doesn't matter because of GWAS? Sounds a bit hand-wavy to me.

      > > Sasha Gusev's Substack as an entry point: https://theinfinitesimal.substack.com

      Blog post looks biased. So there's a controversy: https://en.wikipedia.org/wiki/Missing_heritability_problem

      And there's two camps:

      https://www.clearerthinking.org/post/the-missing-heritability-problem-are-we-about-to-overturn-100-years-of-research

      (I like that article!)

      And the two of you (Davind and Thomas) seem to be in the "The DNA Proponents" camp. The other is "The Twin Study Advocates" camp.

      I guess now I'm in "The middle ground" camp, no longer in the "Twin Study Advocates".

      Thanks for that. Maybe I'll check back in 10 years later and see what has happened.

    • andrewlaAug 2024

      This study was a followup to one that just used signs [1], which yielded performance no better than chance. If the summer/winter correlation held, then that study would have shown positive results, which it did not.

      There's nothing to say that these star charts or seasons of birth cannot correlate with personality traits or life outcomes. But Astrology, as a practice, is not useful for unwinding those correlations. If you have some alternate system, feel free to propose it -- pump the star charts and personality charts from this study into some AI and see if it can come up with some kind of super-astrology, and then try to replicate it.

      I doubt you'd find anything stronger than predicting the answer to the question "were you born in the summer or the winter".

      [1] https://www.clearerthinking.org/post/we-tested-the-predictive-power-of-astrology-here-are-the-results

    • milesjagOct 2022

      Identify elements of good/bad communication patterns: https://consilienceproject.org/endgames-of-bad-communication/

      Non-violent communication is a very structured approach to guiding people through perceived difficult behaviour: https://www.clearerthinking.org/post/2019/03/06/Want-to-improve-your-relationships-Try-Nonviolent-Communication-1

      Gain a little understanding about the give and take of communication: https://experimentalhistory.substack.com/p/good-conversations-have-lots-of-doorknobs

      If possible, try to spend more time with people who espouse these desired characteristics and less time with those who don't.

      Finally, conversation should be...fun...if possible. If you hack your way to being 100% in control of things all the time, then how much fun is that going to be for others?

    • Abishek_MuthianAug 2020

      Congratulations on the launch of the newsletter OP.

      Another news letter on rational thinking I would recommend is ClearThinking[1]. They also have several tools, tests for rationality/biases, specifically useful if we want to test ourself or someone else for a job for which these would be a problem.

      [1]https://www.clearerthinking.org/

    • bforsJun 2021

      You might want to checkout out NVC:

      https://www.clearerthinking.org/post/2019/03/06/want-to-improve-your-relationships-try-nonviolent-communication-1

      I found it through HN and for me, personally, it has helped.

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