Many-Wor­lds Interpretation

TagLast edit: 28 Apr 2012 23:49 UTC by juliawise

Standard quantum mechanics is made of two parts: a part that describes the unitary and deterministic evolution of a state vector, and a part that describes how a state vector randomly collapses when subjected to “measurement”.

The many-worlds interpretation (MWI) cuts away the latter part. It uses decoherence to explain how the universe splits into many separate branches, each of which looks like it came out of a random collapse.

See also

Main post

And the Win­ner is… Many-Wor­lds!

Eliezer Yudkowsky12 Jun 2008 6:05 UTC
27 points
12 comments9 min readLW link

Many Wor­lds, One Best Guess

Eliezer Yudkowsky11 May 2008 8:32 UTC
47 points
80 comments13 min readLW link

Mus­ing on the Many Wor­lds Hypothesis

David Gross5 Jul 2021 19:38 UTC
26 points
2 comments1 min readLW link

Liv­ing in Many Worlds

Eliezer Yudkowsky5 Jun 2008 2:24 UTC
58 points
80 comments5 min readLW link

De­mys­tify­ing Born’s rule

Christopher King14 Jun 2023 3:16 UTC
5 points
26 comments3 min readLW link

If Many-Wor­lds Had Come First

Eliezer Yudkowsky10 May 2008 7:43 UTC
80 points
189 comments9 min readLW link

[Question] When would an agent do some­thing differ­ent as a re­sult of be­liev­ing the many wor­lds the­ory?

mako yass15 Dec 2019 1:02 UTC
13 points
35 comments1 min readLW link

Mul­ti­ple Wor­lds, One Univer­sal Wave Function

evhub4 Nov 2020 22:28 UTC
50 points
76 comments61 min readLW link

Inequal­ity Penalty: Mo­ral­ity in Many Worlds

shminux11 Feb 2023 4:08 UTC
11 points
17 comments6 min readLW link

Many-wor­lds ver­sus dis­crete knowledge

jessicata13 Aug 2020 18:35 UTC
20 points
27 comments1 min readLW link

The Many Wor­lds of Hugh Everett

johnclark22 Apr 2011 15:26 UTC
28 points
50 comments6 min readLW link

Why Many-Wor­lds Is Not The Ra­tion­ally Fa­vored Interpretation

Mitchell_Porter29 Sep 2009 5:22 UTC
13 points
101 comments3 min readLW link

Plu­ral­is­tic Ex­is­tence in Many Many-Worlds

Neotenic12 Mar 2013 2:18 UTC
7 points
31 comments3 min readLW link

Blog­ging­heads: Yud­kowsky and Aaron­son talk about AI and Many-worlds

Vladimir_Nesov16 Aug 2009 16:06 UTC
22 points
102 comments1 min readLW link

Many-Wor­lds In­ter­pre­ta­tion and Death with Dignity

amitlevy494 Apr 2022 16:19 UTC
7 points
11 comments2 min readLW link

[Question] Quan­tum Suicide and Au­mann’s Agree­ment Theorem

Isaac King27 Oct 2022 1:32 UTC
14 points
20 comments1 min readLW link

[Question] Can we, in prin­ci­ple, know the mea­sure of coun­ter­fac­tual quan­tum branches?

sisyphus18 Dec 2022 22:07 UTC
1 point
15 comments1 min readLW link

[Question] What does “prob­a­bil­ity” re­ally mean?

sisyphus28 Dec 2022 3:20 UTC
5 points
20 comments1 min readLW link

Prefer­ence For (Many) Fu­ture Worlds

wedrifid15 Jul 2011 23:31 UTC
31 points
37 comments5 min readLW link

False vac­uum: the uni­verse play­ing quan­tum suicide

Stuart_Armstrong9 Jan 2013 17:04 UTC
26 points
49 comments2 min readLW link

AI Safety via Luck

Jozdien1 Apr 2023 20:13 UTC
73 points
6 comments11 min readLW link

[Question] What is the most effi­cient way to cre­ate more wor­lds in the many wor­lds in­ter­pre­ta­tion of quan­tum me­chan­ics?

seank11 Apr 2022 0:26 UTC
4 points
11 comments1 min readLW link

De­mon­strat­ing MWI by in­terfer­ing hu­man simulations

Yair Halberstadt8 May 2022 17:28 UTC
12 points
25 comments2 min readLW link

[Question] Would quan­tum im­mor­tal­ity mean sub­jec­tive im­mor­tal­ity?

n0ah2 Aug 2022 4:54 UTC
2 points
10 comments1 min readLW link

Life, Death, and Fi­nance in the Cos­mic Mul­ti­verse

peterb16 Oct 2022 18:57 UTC
2 points
2 comments1 min readLW link

Quan­tum Im­mor­tal­ity, foiled

Ben29 Oct 2022 11:00 UTC
26 points
4 comments2 min readLW link

The Con­scious Sorites Paradox

Eliezer Yudkowsky28 Apr 2008 2:58 UTC
17 points
41 comments5 min readLW link

MWI, copies and probability

Roko25 Jun 2010 16:46 UTC
19 points
162 comments3 min readLW link

What kind of place is this?

Jim Pivarski25 Feb 2023 2:14 UTC
24 points
24 comments8 min readLW link

Dice De­ci­sion Making

Bart Bussmann10 Mar 2023 13:01 UTC
18 points
14 comments3 min readLW link

the quan­tum am­pli­tude ar­gu­ment against ethics deduplication

Tamsin Leake12 Mar 2023 13:02 UTC
11 points
16 comments2 min readLW link

Dy­ing in Many Worlds

Ghatanathoah21 Dec 2012 11:48 UTC
25 points
40 comments5 min readLW link

This Failing Earth

Eliezer Yudkowsky24 May 2009 16:09 UTC
50 points
166 comments5 min readLW link

Phys­i­cal­ism im­plies ex­pe­rience never dies. So what am I go­ing to ex­pe­rience af­ter it does?

Szymon Kucharski14 Mar 2021 14:45 UTC
−1 points
1 comment30 min readLW link

Ethics in Many Worlds

fin6 Nov 2020 23:21 UTC
8 points
24 comments9 min readLW link
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