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Homo Sabiens

Essays and fiction on human cognition, rationality, and social dynamics. Previous work findable at: https://www.lesswrong.com/users/deactivated-duncan-sabien https://medium.com/@ThingMaker https://archiveofourown.org/users/WhatWouldEnderDo/works

Newsletter · By Duncan Sabien · English · Paid tier available · Official site

Indexed issues, last 90 days
8
Latest publication
Sep 4, 2026
Audience
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Earliest in this view
Jul 14, 2026

Latest issues

  1. Issue · Sep 4, 2026

    Stop Asking, Start Doing (opens the original)

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    “Okay, but like. What am I supposed to do about it?”I hear this all the time, from people who have just spent the last 5 or 10 or 30 minutes learning about the state of AI development, and how incredibly dangerous and unstable the situation is.(If you’re out of the loop: we could actually for-real no-joke all die within the next 5 years. I am not exaggerating and I am not a kook. It’s that bad. And most of the worlds where we don’t die in the next 5 years are worlds where we die in the next 15.

  2. Issue · Aug 27, 2026

    Mindreading Fails Both Ways (opens the original)

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    This is my favorite new-to-me-this-year screenshot:<img alt="" class="sizing-normal" height="433" src="https://substackcdn.com/image/fetch/$s_!9RHU!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fim

  3. Issue · Aug 18, 2026

    Muddying the Waters (opens the original)

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    I think that people frequently say a vague or rounded-off or approximate thing, and then other people frequently step in to try to clarify, and this attempt at clarification often ends up making things worse.My go-to canonical example here is something like a teacher, in the middle of trying to mete out appropriate consequences to a bully. You can imagine an onlooker seeing the bully getting punished saying something like “but wait—the other guy threw a punch, too!”This reads, to me, as a basica

  4. Issue · Aug 4, 2026

    Short rant about the old books/AI thing (opens the original)

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    I’m really bothered by the moralistic discourse around the destructive scanning of old books. It feels like people are intentionally trying to make the conversation dumber, and with stuff like the known issue of Russian outrage bots, that might literally be the case.<source type="image/w

  5. Issue · Aug 3, 2026

    Activation Energy is a good model for a lot of things (opens the original)

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    I hate every graph I found on Google for “activation energy” so our thumbnail for this essay is just gonna be<img alt="Activation Energy (Ea) Chemistry Definition" class="sizing-normal" height="1197" src="https://substackcdn.com/image/fetch/$s_!Ntiy!,w_

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