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Mo­ral weight

TagLast edit: 30 Nov 2022 8:08 UTC by Janique

The moral weight tag covers posts about differences in moral status, capacity for welfare, or other factors that might determine differences in the characteristic moral value of the lives, interests, or experiences of different types of potential moral patients (such as individuals of different species).

Further reading

Fischer, Bob (2022) Moral Weight Project Sequence, Effective Altruism Forum, October 30.

Muehlhauser, Luke (2017) 2017 report on consciousness and moral patienthood, Open Philanthropy, June.
The idea of “moral weights” is addressed briefly in a few places.

Muehlhauser, Luke (2018) Preliminary thoughts on moral weight, LessWrong, August 14.

Schukraft, Jason (2020) Moral weight series, Effective Altruism Forum, October 19.

Related entries

axiology | moral circle expansion | sentience

Differ­ences in the In­ten­sity of Valenced Ex­pe­rience across Species

Jason Schukraft30 Oct 2020 1:13 UTC
95 points
42 comments52 min readEA link

Effects on microor­ganisms are much larger than those on an­i­mals and plants un­der the as­sump­tions of Re­think Pri­ori­ties’ main­line welfare ranges?

Vasco Grilo🔸28 Jul 2025 16:26 UTC
14 points
7 comments8 min readEA link

How to Mea­sure Ca­pac­ity for Welfare and Mo­ral Status

Jason Schukraft1 Jun 2020 15:01 UTC
71 points
19 comments41 min readEA link

Cost-effec­tive­ness ac­count­ing for soil ne­ma­todes, mites, and springtails

Vasco Grilo🔸3 Jun 2025 16:43 UTC
67 points
46 comments23 min readEA link

Sav­ing hu­man lives cheaply is the most cost-effec­tive way of in­creas­ing an­i­mal welfare?

Vasco Grilo🔸7 Aug 2025 16:29 UTC
23 points
17 comments16 min readEA link

Com­par­i­sons of Ca­pac­ity for Welfare and Mo­ral Sta­tus Across Species

Jason Schukraft18 May 2020 0:42 UTC
104 points
63 comments59 min readEA link

Why Neu­ron Counts Shouldn’t Be Used as Prox­ies for Mo­ral Weight

Adam Shriver28 Nov 2022 12:07 UTC
297 points
46 comments9 min readEA link
(docs.google.com)

It’s OK to eat shrimp: EAs Make In­valid In­fer­ences About Fish Qualia and Mo­ral Patienthood

MikhailSamin13 Nov 2023 16:51 UTC
−4 points
34 comments7 min readEA link

Valu­ing Im­pacts Across Species: A Re­search Agenda

Bob Fischer4 Nov 2024 11:55 UTC
45 points
2 comments22 min readEA link

Why Mo­ral Weights Have Two Types and How to Mea­sure Them

Beyond Singularity17 Jul 2025 10:58 UTC
17 points
4 comments4 min readEA link

Re­search Sum­mary: The In­ten­sity of Valenced Ex­pe­rience across Species

Jason Schukraft11 Nov 2020 17:26 UTC
65 points
6 comments4 min readEA link

The Sub­jec­tive Ex­pe­rience of Time: Welfare Implications

Jason Schukraft27 Jul 2020 13:24 UTC
115 points
21 comments63 min readEA link

Mo­ral weights for var­i­ous species and distributions

Vasco Grilo🔸3 Jul 2022 18:19 UTC
15 points
10 comments3 min readEA link

Welfare ranges per calorie consumption

Vasco Grilo🔸24 Jun 2023 8:47 UTC
12 points
15 comments2 min readEA link

New re­search on moral weights

GiveWell4 Dec 2019 11:57 UTC
42 points
4 comments2 min readEA link
(blog.givewell.org)

Se­quence overview: Welfare and moral weights

Michael St Jules 🔸1 Aug 2024 16:51 UTC
34 points
0 comments1 min readEA link

Pri­ori­tise soil an­i­mals over farmed in­ver­te­brates?

Vasco Grilo🔸15 Nov 2025 9:58 UTC
46 points
9 comments7 min readEA link

Alice Red­fern: Mo­ral weights in the de­vel­op­ing world — IDin­sight’s Benefi­ciary Prefer­ences Project

EA Global29 Jun 2020 14:02 UTC
26 points
0 comments16 min readEA link
(www.youtube.com)

An In­tro­duc­tion to the Mo­ral Weight Project

Bob Fischer31 Oct 2022 9:13 UTC
181 points
10 comments10 min readEA link

Neu­ron Count-Based Mea­sures May Cur­rently Un­der­weight Suffer­ing in Farmed Fish

MHR🔸13 Dec 2022 20:05 UTC
69 points
9 comments6 min readEA link

Hi, I’m Luke Muehlhauser. AMA about Open Philan­thropy’s new re­port on con­scious­ness and moral patienthood

lukeprog28 Jun 2017 15:49 UTC
32 points
66 comments1 min readEA link

Us­ing Sub­jec­tive Well-Be­ing to Es­ti­mate the Mo­ral Weights of Avert­ing Deaths and Re­duc­ing Poverty

MichaelPlant3 Aug 2020 16:17 UTC
98 points
8 comments35 min readEA link

Com­ments on “Us­ing Sub­jec­tive Well-Be­ing to Es­ti­mate the Mo­ral Weights of Avert­ing Deaths and Re­duc­ing Poverty”

AidanGoth29 Sep 2020 19:36 UTC
33 points
10 comments12 min readEA link

Mo­ral Weights ac­cord­ing to EA Orgs

Simon_M8 Jan 2023 16:46 UTC
111 points
15 comments1 min readEA link

What Is the To­tal Global Ca­pa­bil­ity for Suffer­ing and Joy? A Call for a Col­lab­o­ra­tive EA Project

alamo 291426 Nov 2022 12:42 UTC
−2 points
3 comments1 min readEA link

The death­print of re­plac­ing beef by chicken and in­sect meat

Stijn Bruers 🔸30 Nov 2022 7:51 UTC
70 points
20 comments10 min readEA link

SoGive’s moral weights—please take part!

Sanjay5 Apr 2021 22:47 UTC
26 points
2 comments2 min readEA link

Ja­son Schukraft: Mo­ral stand­ing and cause pri­ori­ti­za­tion

EA Global24 Oct 2020 19:56 UTC
9 points
0 comments1 min readEA link
(www.youtube.com)

In­creas­ingly vague in­ter­per­sonal welfare comparisons

Michael St Jules 🔸1 Feb 2024 6:12 UTC
36 points
0 comments2 min readEA link

Solu­tion to the two en­velopes prob­lem for moral weights

Michael St Jules 🔸19 Feb 2024 0:15 UTC
66 points
26 comments27 min readEA link

Is RP’s Mo­ral Weights Pro­ject too an­i­mal friendly? Four crit­i­cal junctures

NickLaing11 Oct 2024 12:03 UTC
141 points
56 comments5 min readEA link

New Zealan­ders (statis­ti­cally) value a life at $12.5M (NZD)

JohnW17 May 2023 23:18 UTC
19 points
0 comments2 min readEA link

Mea­sur­ing Good Better

MichaelPlant14 Oct 2022 13:36 UTC
235 points
19 comments15 min readEA link

More an­i­mal farm­ing in­creases an­i­mal welfare if soil an­i­mals have nega­tive lives?

Vasco Grilo🔸26 Oct 2025 9:21 UTC
16 points
29 comments17 min readEA link

Should we con­sider the welfare of small soil an­i­mals? On the spe­cial rel­a­tivity of welfare

Stijn Bruers 🔸22 Jul 2025 11:09 UTC
66 points
14 comments7 min readEA link

[Question] Why might one value an­i­mals far less than hu­mans?

IsabelHasse8 Jun 2020 1:54 UTC
28 points
14 comments1 min readEA link

De­sire the­o­ries of welfare and non­hu­man animals

Michael St Jules 🔸16 Jul 2022 18:52 UTC
20 points
5 comments4 min readEA link

The scale of an­i­mal agriculture

Michael St Jules 🔸16 May 2024 4:01 UTC
51 points
4 comments3 min readEA link

To­tal num­ber of neu­rons and welfare of an­i­mal populations

Vasco Grilo🔸11 Oct 2025 8:57 UTC
37 points
11 comments12 min readEA link

Bad­ness of eat­ing farmed an­i­mals in terms of smok­ing cigarettes

Vasco Grilo🔸22 Jul 2023 8:45 UTC
26 points
2 comments6 min readEA link

Gra­da­tions of moral weight

Michael St Jules 🔸29 Feb 2024 23:08 UTC
14 points
0 comments10 min readEA link

Mo­ral cir­cles: De­grees, di­men­sions, visuals

MichaelA🔸24 Jul 2020 4:04 UTC
88 points
10 comments13 min readEA link

An­i­mal farm­ing im­pacts soil ne­ma­todes, mites, and spring­tails hugely more than di­rectly af­fected an­i­mals?

Vasco Grilo🔸28 Jun 2025 14:02 UTC
47 points
43 comments6 min readEA link

Re­search Sum­mary: The Sub­jec­tive Ex­pe­rience of Time

Jason Schukraft10 Aug 2020 13:28 UTC
83 points
7 comments4 min readEA link

Eth­i­cal co-evolu­tion, or how to turn the main threat into a lev­er­age for longter­mism?

Beyond Singularity17 Sep 2025 17:24 UTC
7 points
7 comments8 min readEA link

An­i­mals mat­ter a lot on non-he­do­nis­tic views

Michael St Jules 🔸16 Oct 2024 18:15 UTC
52 points
0 comments3 min readEA link

Which an­i­mals re­al­ize which types of sub­jec­tive welfare?

Michael St Jules 🔸27 Feb 2024 19:31 UTC
22 points
0 comments18 min readEA link

Mo­ral Weights of An­i­mals, Con­sid­er­ing View­point Uncertainty

rogersbacon117 Jul 2022 19:52 UTC
17 points
0 comments1 min readEA link
(www.theseedsofscience.org)

Types of sub­jec­tive welfare

Michael St Jules 🔸2 Feb 2024 9:56 UTC
42 points
0 comments18 min readEA link

New Open Ac­cess Book: Weigh­ing An­i­mal Welfare, ed­ited by Bob Fischer

Bob Fischer22 Oct 2024 11:25 UTC
145 points
9 comments2 min readEA link

Tech­ni­cal Up­dates to Our Global Health and Wel­lbe­ing Cause Pri­ori­ti­za­tion Framework

Alexander_Berger20 Nov 2021 13:03 UTC
76 points
2 comments27 min readEA link

De­bate: or­gani­sa­tions us­ing Re­think Pri­ori­ties’ main­line welfare ranges should con­sider effects on soil ne­ma­todes, mites, and spring­tails, or at least be trans­par­ent about their rea­sons for ne­glect­ing them?

Vasco Grilo🔸13 Jul 2025 11:41 UTC
30 points
66 comments6 min readEA link

Re­search I’d like to see

Alex Cohen17 Dec 2024 14:08 UTC
62 points
1 comment5 min readEA link

Elec­tric Shrimp Stun­ning: a Po­ten­tial High-Im­pact Dona­tion Opportunity

MHR🔸13 Jul 2023 0:39 UTC
156 points
22 comments10 min readEA link

It takes 5 lay­ers and 1000 ar­tifi­cial neu­rons to simu­late a sin­gle biolog­i­cal neu­ron [Link]

Michael St Jules 🔸7 Sep 2021 21:53 UTC
44 points
17 comments2 min readEA link

Find­ing bugs in GiveWell’s top charities

Vasco Grilo🔸23 Jan 2023 16:49 UTC
48 points
14 comments6 min readEA link

Scale of the welfare of var­i­ous an­i­mal populations

Vasco Grilo🔸19 Mar 2023 7:10 UTC
58 points
24 comments5 min readEA link

Does Crit­i­cal Flicker-Fu­sion Fre­quency Track the Sub­jec­tive Ex­pe­rience of Time?

Jason Schukraft3 Aug 2020 13:30 UTC
68 points
20 comments26 min readEA link

The Case for In­sect Consciousness

Vasco Grilo🔸24 Apr 2025 16:58 UTC
105 points
13 comments13 min readEA link
(asteriskmag.com)

Per­ceived Mo­ral Value of An­i­mals and Cor­ti­cal Neu­ron Count

Willem Sleegers25 Aug 2023 14:52 UTC
54 points
5 comments20 min readEA link

Net global welfare may be nega­tive and declining

kyle_fish26 Sep 2023 18:49 UTC
292 points
50 comments8 min readEA link

Once More, Without Feel­ing (An­dreas Mo­gensen)

Global Priorities Institute21 Jan 2025 14:53 UTC
32 points
1 comment2 min readEA link
(globalprioritiesinstitute.org)

Bet­ter differ­ence-mak­ing views

Michael St Jules 🔸21 Dec 2024 18:27 UTC
31 points
0 comments14 min readEA link

Is Suffer­ing Con­vex?

Davidmanheim21 Oct 2018 11:44 UTC
21 points
16 comments3 min readEA link

A Mo­ral Par­li­a­ment Tool for Eval­u­at­ing GiveWell Projects

Hayley Clatterbuck15 Oct 2025 20:26 UTC
14 points
0 comments9 min readEA link

A Mo­ral Par­li­a­ment Tool for Distribut­ing Re­sources across Farmed An­i­mal Recipients

Hayley Clatterbuck15 Oct 2025 20:27 UTC
26 points
0 comments5 min readEA link

[Question] Is im­prov­ing the welfare of arthro­pods and ne­ma­todes un­der­rated?

Vasco Grilo🔸8 Nov 2022 10:26 UTC
37 points
11 comments1 min readEA link

Stream­lin­ing aca­demic read­ing groups

Glen William Spiteri21 Apr 2025 18:51 UTC
19 points
1 comment4 min readEA link

What might decor­ti­cate rats tell us about the dis­tri­bu­tion of con­scious­ness?

Derek Shiller20 Jul 2022 12:00 UTC
31 points
14 comments10 min readEA link

Is there more to life than sur­vival and in­come?

brb24313 Oct 2022 21:56 UTC
15 points
7 comments5 min readEA link

Min­i­mal­ist ax­iolo­gies and pos­i­tive lives

Teo Ajantaival13 Nov 2021 10:57 UTC
57 points
12 comments24 min readEA link

Why an­i­mal char­i­ties are much more effec­tive than hu­man ones

utilitarian018 Apr 2019 17:48 UTC
14 points
15 comments2 min readEA link

Biorisk is smaller in scale than farmed an­i­mal welfare

OGTutzauer🔸6 Feb 2025 10:26 UTC
36 points
6 comments3 min readEA link

CEARCH Mo­ral Weights Sur­vey: Sodium & Soda Tax

Joel Tan🔸30 May 2023 8:32 UTC
16 points
13 comments1 min readEA link
(docs.google.com)

Quadrillion-dol­lar bills on the side­walk? Quan­tify­ing an­i­mal welfare changes

AdamC9 Feb 2025 22:23 UTC
49 points
2 comments13 min readEA link

The Mo­ral Two En­velopes Prob­lem and the Mo­ral Weights Project

Derek Shiller15 Oct 2024 18:12 UTC
92 points
20 comments14 min readEA link

Weighted wellbe­ing pop­u­la­tion theory

brb2433 Nov 2021 3:01 UTC
2 points
2 comments6 min readEA link

Most of the World Is an Adorably Suffer­ing, De­bat­ably Con­scious Baby

Jack_S🔸21 Aug 2025 10:40 UTC
193 points
4 comments10 min readEA link
(torchestogether.substack.com)

SoGive’s tools for set­ting philan­thropy strategy

Sanjay16 Nov 2025 10:02 UTC
26 points
0 comments2 min readEA link

Do we need a new Mo­ral Weights Pro­ject?

NickLaing30 Jun 2025 17:47 UTC
92 points
19 comments2 min readEA link

Do prim­i­tive sen­tient or­ganisms feel ex­treme pain? dis­en­tan­gling in­ten­sity range and re­s­olu­tion

Wladimir J. Alonso17 May 2025 16:25 UTC
99 points
10 comments11 min readEA link

New book: Mo­ral Uncer­tainty by MacAskill, Ord & Bykvist

frankieaw10 Sep 2020 16:22 UTC
91 points
2 comments1 min readEA link

Hard Prob­lems in GiveWell’s Mo­ral Weights Approach

Tanae1 Nov 2022 4:51 UTC
37 points
3 comments9 min readEA link

Are we as rigor­ous in ad­dress­ing Utili­tar­i­anism’s the­o­ret­i­cal challenges as we are with its prac­ti­cal im­pli­ca­tions?

Silvan10 Jul 2024 13:08 UTC
15 points
5 comments5 min readEA link

Which an­i­mals are most af­fected by fish­ing?

Michael St Jules 🔸25 Nov 2024 5:39 UTC
54 points
3 comments2 min readEA link

Is shrimp eye­stalk ab­la­tion a red her­ring?

Henry Howard🔸18 Apr 2025 0:34 UTC
43 points
10 comments1 min readEA link

Do sour grapes ap­ply to moral­ity?

Nikola16 Dec 2021 18:00 UTC
21 points
3 comments2 min readEA link

(p-)Zom­bie Uni­verse: an­other X-risk

Toby Tremlett🔹28 Jul 2022 21:34 UTC
21 points
5 comments4 min readEA link

A new place to dis­cuss cog­ni­tive sci­ence, ethics and hu­man alignment

Daniel_Friedrich4 Nov 2022 14:34 UTC
9 points
1 comment2 min readEA link
(www.facebook.com)

Against the So­cial Dis­count Rate (Cowen & Parfit) - Weak refutations

Jørgen Ljønes🔸12 Aug 2020 15:06 UTC
31 points
3 comments5 min readEA link

Value of Life: VSL Es­ti­mates vs Com­mu­nity Per­spec­tive Evaluations

Joel Tan🔸6 Sep 2022 14:35 UTC
53 points
4 comments4 min readEA link

A cri­tique of strong longtermism

Pablo Rosado28 Aug 2022 19:33 UTC
15 points
11 comments14 min readEA link

Long-Run Hu­man Im­pact On Wild An­i­mal Suffer­ing: Much More Than You Wanted To Know

Bentham's Bulldog27 May 2025 15:38 UTC
76 points
9 comments15 min readEA link

Mo­ral Weights of Six An­i­mals, Con­sid­er­ing View­point Uncer­tainty—Seeds of Science call for reviewers

rogersbacon126 May 2022 13:28 UTC
23 points
5 comments1 min readEA link

StrongMinds (5 of 9) - De­pres­sion’s Mo­ral Weight

ishaan24 Dec 2023 11:51 UTC
26 points
3 comments15 min readEA link

Re­search sum­mary: brain cell counts in Black Soldier Flies (Her­me­tia illu­cens; Diptera: Stra­tiomy­i­dae)

Rethink Priorities15 Aug 2022 23:44 UTC
69 points
2 comments14 min readEA link
(www.sciencedirect.com)

Don’t Balk at An­i­mal-friendly Results

Bob Fischer16 Jan 2023 11:52 UTC
152 points
7 comments14 min readEA link

Early Bird Fee for ICARE’s Con­tem­po­rary Is­sues in An­i­mal Rights Law (CIARL) Live Course Ends 15 Sept!

Marine Lercier13 Sep 2025 9:03 UTC
7 points
0 comments1 min readEA link

[Question] Ques­tion for longtermism

Ahrenbach21 Jan 2024 19:14 UTC
4 points
2 comments2 min readEA link

What would an an­i­mal-friendly yet com­mon sense moral frame­work look like? Re­ject­ing he­do­nism, ac­cept­ing in­com­men­su­ra­bil­ity of values

Engin Arıkan22 Dec 2024 19:21 UTC
19 points
5 comments17 min readEA link

Pos­i­tive roles of life and ex­pe­rience in suffer­ing-fo­cused ethics

Teo Ajantaival22 May 2021 16:05 UTC
50 points
1 comment19 min readEA link

Notes from “Cog­ni­tion, welfare, and the prob­lem of in­ter­species com­par­i­sons”

Barry Grimes16 Nov 2021 9:17 UTC
30 points
0 comments11 min readEA link

Do Brains Con­tain Many Con­scious Sub­sys­tems? If So, Should We Act Differ­ently?

Bob Fischer5 Dec 2022 11:56 UTC
99 points
13 comments21 min readEA link

Grap­pling with an Un­com­fortable Trade-off: Hu­man Lives vs. An­i­mal Suffering

tootlife23 Jul 2025 14:58 UTC
0 points
7 comments4 min readEA link

Sym­pa­thec­tomies—The New Lobotomy

handoftheenemy27 Aug 2022 8:28 UTC
40 points
10 comments5 min readEA link

Oc­to­puses (Prob­a­bly) Don’t Have Nine Minds

Bob Fischer12 Dec 2022 11:59 UTC
94 points
19 comments10 min readEA link
(docs.google.com)

The psy­chol­ogy of moral learn­ing: a re­view on the role of at­ten­tion in learn­ing how to make moral judg­ments and decisions

Glen William Spiteri21 Apr 2025 17:31 UTC
12 points
1 comment45 min readEA link