LessWrong (30+ Karma)

“Sublinear Utility in Population and other Uncommon Utilitarianism” by Alice Blair


Listen Later

Content warning: Anthropics, Moral Philosophy, and Shrimp

This post isn't trying to be self contained, since I have so many disparate thoughts about this. Instead, I'm trying to put a representative set of ideas forward, and I hope that if people are interested we can discuss this more in the comments. I also plan to turn this into a (probably small) sequence at some point.

I've had a number of conversations about moral philosophy where I make some claim like

Utility is bounded and asymptotically sublinear in number of human lives, but superlinear or ~linear in the ranges we will ever have to care about.

Common reactions to this include:

  • "Wait, what?"
  • "Why would that be the case?"
  • "This doesn't make any sense relative to my existing conceptions of classical utilitarianism, what is going on here?"

So I have gotten the impression that this is a decently [...]

---

Outline:

(02:11) Aside: Utilitarianism

(02:28) The More Mathy Pointer

(03:15) Duplicate Simulations

(05:50) Slightly Different Simulations

(07:31) Utility Variation with Population

(07:51) More is Better

(08:06) In Some Domains, More is Superlinearly Better

(08:41) But Value Space is Limited

(09:21) What About The Other Animals?

(10:55) What Does this Mean About Classical EA?

(11:58) Other Curiosities

The original text contained 3 footnotes which were omitted from this narration.

---

First published:

October 13th, 2025

Source:

https://www.lesswrong.com/posts/NRxn6R2tesRzzTBKG/sublinear-utility-in-population-and-other-uncommon

---

Narrated by TYPE III AUDIO.

---

Images from the article:

Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.

...more
View all episodesView all episodes
Download on the App Store

LessWrong (30+ Karma)By LessWrong


More shows like LessWrong (30+ Karma)

View all
The Daily by The New York Times

The Daily

113,323 Listeners

Astral Codex Ten Podcast by Jeremiah

Astral Codex Ten Podcast

132 Listeners

Interesting Times with Ross Douthat by New York Times Opinion

Interesting Times with Ross Douthat

7,263 Listeners

Dwarkesh Podcast by Dwarkesh Patel

Dwarkesh Podcast

566 Listeners

The Ezra Klein Show by New York Times Opinion

The Ezra Klein Show

16,490 Listeners

AI Article Readings by Readings of great articles in AI voices

AI Article Readings

4 Listeners

Doom Debates! by Liron Shapira

Doom Debates!

14 Listeners

LessWrong posts by zvi by zvi

LessWrong posts by zvi

2 Listeners