Episode Details

This is a link post.

[Subtitle.] Sentience and moral priority-setting

This is a crosspost for The shrimp bet: When big numbers outsprint the evidence by Rob Velzeboer, which was originally published on 27 January 2026.

TLDR: Shrimp welfare looks like the ultimate “scale + tractability” slam-dunk: massive numbers, cheap fixes, grim-sounding deaths. But the flagship farmed species—the penaeid shrimp L. vannamei—is an evidential outlier: beyond basic nociception, the sentience case is close to empty, and the limited evidence we do have points the wrong way on key markers. In the report that kicked off this wave, it was included for administrative clarity, not because sentience looked likely. If you let precaution plus expected-value reasoning run on that evidential bar, you don’t stop at shrimp, but you get pulled into insects and the rest of modern life's collateral killing. My view is that we shouldn’t let raw numbers and optimistic assumptions about sentience guide our moral priorities: most weight should go to high-confidence, severe, tractable suffering, and extremely low-confidence beings with high numbers should be treated as explicit research-and-standards bets, unless at least some higher-order evidence actually suggests pain.

“At least I’m not a shrimp.”

It's a line I’d often repeat [...]

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Outline:

(03:37) PART 1: SHRIMP

(03:41) Why focus on shrimp

(08:26) The evidence for shrimp pain

(15:01) Skepticism

(19:11) PART 2: PRIORITIZATION

(19:16) The implications of this view

(25:04) Pain severity

(32:05) Prioritization

(36:18) References

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First published:
February 6th, 2026

Source:
https://forum.effectivealtruism.org/posts/ruG5GrTcE2DBiCDfW/the-shrimp-bet-when-big-numbers-outsprint-the-evidence

Linkpost URL:
https://robvelzeboer.substack.com/p/the-shrimp-bet

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Narrated by TYPE III AUDIO.

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