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“Effective Altruism, Seen From Slytherin” by Xylix


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Epistemic status: Left as an exercise for the reader.

I was thinking of EA outreach and its optics this week. And was inspired to glance at a specific part: What does EA look like from the lens of a Slytherin?

People keep being surprised about Effective Altruist Slytherins

Surprise means your model has error. I'll point out the confusions. First confusion:

But Slytherins don't care for altruistic goals!

I think we can divide the Hogwarts Houses into methods houses

[1]
:

  • Slytherin values social shrewdness. Understanding the status game. Knowing who holds the stakes.
  • Ravenclaw values well-crunched analysis. Intellectualism. Academicness.
  • and value houses:

    • Gryffindor values courage and doing what's right
    • Hufflepuff values kindness and loyalty
    • And this naturally leads into an explanation for why Slytherins would want to do EA:

      Slytherins have a pretty normal amount of variance in their values, accounting for their backgrounds. Methods are (to a significant degree) orthogonal to values.

      If it's a methods house, why do even the non-reprehensible Slytherins often get called evil? I think it's largely because the Slytherin-virtuous methods are considered reprehensible by the [...]

      ---

      Outline:

      (00:25) People keep being surprised about Effective Altruist Slytherins

      (00:38) But Slytherins dont care for altruistic goals!

      (01:56) But why are there so few Slytherin EAs?

      (02:00) 1. Selection effects

      (04:06) 2. You just dont see them

      (04:28) Case study

      The original text contained 2 footnotes which were omitted from this narration.

      ---

      First published:

      April 14th, 2026

      Source:

      https://www.lesswrong.com/posts/vEtDRyhfCNBKBiiy7/effective-altruism-seen-from-slytherin

      ---

      Narrated by TYPE III AUDIO.

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