Physics

Tag

Dark Matters

DiffractorMar 14, 2021, 11:36 PM

240 points

23 comments15 min readLW link

The Quantum Physics Sequence

Eliezer YudkowskyJun 11, 2008, 3:42 AM

75 points

26 comments15 min readLW link

The Second Law of Thermodynamics, and Engines of Cognition

Eliezer YudkowskyFeb 27, 2008, 12:48 AM

206 points

76 comments9 min readLW link

The special nature of special relativity

adamShimiJan 9, 2023, 5:30 PM

37 points

1 comment3 min readLW link

(epistemologicalvigilance.substack.com)

Generalized Stat Mech: The Boltzmann Approach

David Lorell and johnswentworth

Apr 12, 2024, 5:47 PM

71 points

7 comments20 min readLW link

Introduction to abstract entropy

Alex_AltairOct 20, 2022, 9:03 PM

238 points

78 comments18 min readLW link 1 review

So you think you understand Quantum Mechanics

ShmiDec 22, 2012, 9:16 PM

65 points

64 comments3 min readLW link

Thou Art Physics

Eliezer YudkowskyJun 6, 2008, 6:37 AM

153 points

88 comments3 min readLW link

Climate technology primer (1/3): basics

amarblesOct 25, 2019, 11:18 PM

38 points

5 comments59 min readLW link

Two More Things to Unlearn from School

Eliezer YudkowskyJul 12, 2007, 5:45 PM

174 points

157 comments2 min readLW link

How counting neutrons explains nuclear waste

jasoncrawfordMay 30, 2021, 6:10 PM

101 points

11 comments14 min readLW link

(rootsofprogress.org)

Demystifying Born’s rule

Christopher KingJun 14, 2023, 3:16 AM

5 points

26 comments3 min readLW link

An Alternative Interpretation of Physics

dadadarrenMay 9, 2022, 12:52 AM

18 points

10 comments5 min readLW link

(www.sleepingbeautyproblem.com)

Quantum Physics Revealed As Non-Mysterious

Eliezer YudkowskyJun 12, 2008, 5:20 AM

13 points

26 comments8 min readLW link

Why Study Physics?

johnswentworthNov 27, 2021, 10:30 PM

71 points

30 comments3 min readLW link

Many Worlds, One Best Guess

Eliezer YudkowskyMay 11, 2008, 8:32 AM

54 points

82 comments13 min readLW link

[Question] A Floating Cube—Rejected HLE submission

Shankar SivarajanJan 25, 2025, 4:52 AM

7 points

1 comment1 min readLW link

re: Yudkowsky on biological materials

bhauthDec 11, 2023, 1:28 PM

182 points

30 comments5 min readLW link

Decoherence is Falsifiable and Testable

Eliezer YudkowskyMay 7, 2008, 7:54 AM

47 points

43 comments9 min readLW link

Disambiguating the ‘Observable Universe’

Sam EnrightJan 26, 2022, 4:50 PM

24 points

5 comments2 min readLW link

Brain Efficiency: Much More than You Wanted to Know

jacob_cannellJan 6, 2022, 3:38 AM

201 points

103 comments29 min readLW link

[Question] Isomorphisms don’t preserve subjective experience… right?

Terence CoelhoJul 3, 2024, 2:22 PM

5 points

26 comments1 min readLW link

The Hidden Perils of Hydrogen

Yudhister KumarOct 15, 2023, 7:51 PM

17 points

3 comments3 min readLW link

(ykumar.org)

12 interesting things I learned studying the discovery of nature’s laws

Ben PaceFeb 19, 2022, 11:39 PM

268 points

40 comments9 min readLW link 1 review

Multiple Worlds, One Universal Wave Function

evhubNov 4, 2020, 10:28 PM

60 points

76 comments61 min readLW link

[Question] Measure of complexity allowed by the laws of the universe and relative theory?

dr_sSep 7, 2023, 12:21 PM

8 points

22 comments1 min readLW link

QFT and neural nets: the basic idea

Dmitry VaintrobJan 24, 2025, 1:54 PM

26 points

0 comments8 min readLW link

[Question] Exercise: Solve “Thinking Physics”

RaemonAug 1, 2023, 12:44 AM

101 points

30 comments5 min readLW link 1 review

Brain Efficiency Cannell Prize Contest Award Ceremony

Alexander Gietelink OldenzielJul 24, 2023, 11:30 AM

149 points

12 comments7 min readLW link

introduction to thermal conductivity and noise management

bhauthMar 6, 2024, 11:14 PM

31 points

1 comment4 min readLW link

(www.bhauth.com)

References & Resources for LessWrong

XiXiDuOct 10, 2010, 2:54 PM

168 points

104 comments20 min readLW link

cold aluminum for medicine

bhauthDec 16, 2023, 2:38 PM

42 points

4 comments4 min readLW link

(www.bhauth.com)

[Retracted] Newton’s law of cooling from first principles

NisanJan 16, 2024, 4:21 AM

9 points

15 comments2 min readLW link

Why Yudkowsky is wrong about “covalently bonded equivalents of biology”

titotalDec 6, 2023, 2:09 PM

44 points

41 comments1 min readLW link

(open.substack.com)

Replacing Natural Interpretations

adamShimiMar 16, 2022, 1:05 PM

19 points

0 comments7 min readLW link

Beliefs at different timescales

NisanNov 4, 2018, 8:10 PM

25 points

12 comments2 min readLW link

The Value of Theoretical Research

paulfchristianoFeb 25, 2011, 6:06 PM

65 points

53 comments3 min readLW link

Explanatory Parsimony, Explanatory Superfluousness and Uselessness of Newton’s First Law

Jimdrix_HendriJan 24, 2023, 5:21 PM

−2 points

7 comments2 min readLW link

LK-99 in retrospect

bhauthJul 7, 2024, 2:06 AM

72 points

21 comments3 min readLW link

(www.bhauth.com)

Momentum of Light in Glass

BenOct 9, 2024, 8:19 PM

143 points

44 comments11 min readLW link

[Question] What empirical work has been done that bears on the ‘freebit picture’ of free will?

DanielFilanOct 4, 2019, 11:11 PM

9 points

5 comments1 min readLW link

Bandgaps, Brains, and Bioweapons: The limitations of computational science and what it means for AGI

titotalMay 26, 2023, 3:57 PM

36 points

20 comments1 min readLW link

how birds sense magnetic fields

bhauthJun 27, 2024, 6:59 PM

51 points

4 comments5 min readLW link

(www.bhauth.com)

Living in Many Worlds

Eliezer YudkowskyJun 5, 2008, 2:24 AM

62 points

81 comments5 min readLW link

Shotgun Book Reviews: Against Method, The Knowledge Machine and Understanding Nature

adamShimiMar 14, 2022, 8:13 AM

28 points

3 comments8 min readLW link

Noticing confusion in physics

Jacob G-WOct 12, 2023, 3:21 PM

20 points

27 comments2 min readLW link

(jacobgw.com)

Quantum Explanations

Eliezer YudkowskyApr 9, 2008, 8:15 AM

97 points

61 comments6 min readLW link

microwave drilling is impractical

bhauthJun 12, 2024, 10:16 PM

59 points

19 comments4 min readLW link

(www.bhauth.com)

FTL travel summary

Isaac KingDec 4, 2023, 5:17 AM

1 point

3 comments3 min readLW link

[Question] Are quantum indeterminacy and normal uncertainty meaningfully distinct?

eapiMar 30, 2023, 11:48 PM

8 points

11 comments2 min readLW link

Timeless Physics

Eliezer YudkowskyMay 27, 2008, 9:09 AM

54 points

121 comments12 min readLW link

[Question] What’s the longest a sentient observer could survive in the Dark Era?

RaemonSep 15, 2022, 8:43 AM

33 points

15 comments1 min readLW link

Generalized Heat Engine

johnswentworthNov 5, 2020, 7:01 PM

186 points

11 comments7 min readLW link

Notes from the book ‘First Three Minutes’ by Steven Weinberg

invertedpassionOct 13, 2021, 9:06 AM

6 points

0 comments9 min readLW link

The predictive power of dissipative adaptation

dr_sDec 17, 2023, 2:01 PM

56 points

14 comments19 min readLW link

Career prospects for physics majors

JonahSApr 4, 2014, 3:02 AM

20 points

32 comments5 min readLW link

Can we see light?

Zane ScheepersDec 7, 2017, 12:54 PM

3 points

34 comments2 min readLW link

Does descaling a kettle help? Theory and practice

philhMay 2, 2023, 8:20 PM

35 points

25 comments8 min readLW link

(reasonableapproximation.net)

5 Physics Problems

DaemonicSigil and Muireall

Mar 18, 2024, 8:05 AM

60 points

0 comments15 min readLW link

The quantum red pill or: They lied to you, we live in the (density) matrix

Dmitry VaintrobJan 17, 2025, 1:58 PM

37 points

34 comments12 min readLW link

How accurate is the quantum physics sequence?

Paul CrowleyApr 17, 2012, 6:54 AM

72 points

68 comments1 min readLW link

My current LK99 questions

Eliezer YudkowskyAug 1, 2023, 10:48 PM

206 points

38 comments5 min readLW link

A dynamical systems primer for entropy and optimization

Alex_AltairDec 10, 2022, 12:13 AM

45 points

3 comments7 min readLW link

Musing on the Many Worlds Hypothesis

David GrossJul 5, 2021, 7:38 PM

26 points

2 comments1 min readLW link

[Summary] “Introduction to Electrodynamics” by David Griffiths—Part 1

lsusrSep 22, 2021, 10:22 PM

25 points

4 comments4 min readLW link

shoes with springs

bhauthDec 30, 2023, 9:46 PM

69 points

9 comments4 min readLW link 2 reviews

(www.bhauth.com)

3 entirely different things we call “Time”

Vasyl DotsenkoApr 9, 2023, 8:08 PM

0 points

6 comments2 min readLW link

(medium.com)

Zeno walks into a bar

lsusrAug 4, 2019, 7:00 AM

53 points

4 comments2 min readLW link

An analogy as the midwife of thermodynamics

adamShimiFeb 16, 2022, 9:34 PM

30 points

10 comments7 min readLW link

Where Philosophy Meets Science

Eliezer YudkowskyApr 12, 2008, 9:21 PM

62 points

21 comments4 min readLW link

[Question] Assuming LK99 or similar: how to accelerate commercialization?

ryan_bAug 13, 2023, 9:34 PM

7 points

5 comments1 min readLW link

[Question] Does a time-reversible physical law/Cellular Automaton always imply the First Law of Thermodynamics?

Noosphere89Aug 30, 2024, 3:12 PM

7 points

11 comments1 min readLW link

The memorization-generalization spectrum and learning coefficients

Dmitry VaintrobJan 28, 2025, 4:53 PM

17 points

0 comments10 min readLW link

Einstein’s Speed

Eliezer YudkowskyMay 21, 2008, 2:48 AM

70 points

35 comments8 min readLW link

Pulling the Rope Sideways: Empirical Test Results

Daniel KokotajloJul 27, 2023, 10:18 PM

61 points

18 comments1 min readLW link

Are the fundamental physical constants computable?

Yair HalberstadtApr 5, 2022, 3:05 PM

15 points

6 comments2 min readLW link

Physics has laws, the Universe might not

ShmiJun 9, 2018, 5:33 AM

25 points

23 comments3 min readLW link

Decoherence as Projection

Eliezer YudkowskyMay 2, 2008, 6:32 AM

27 points

27 comments11 min readLW link

The Quantum Arena

Eliezer YudkowskyApr 15, 2008, 7:00 PM

38 points

72 comments6 min readLW link

No Individual Particles

Eliezer YudkowskyApr 18, 2008, 4:40 AM

36 points

24 comments5 min readLW link

Physics of Celestial Bodies Applied to Social Dynamics

QuanJan 8, 2025, 11:16 PM

1 point

0 comments6 min readLW link

Can You Prove Two Particles Are Identical?

Eliezer YudkowskyApr 14, 2008, 7:06 AM

63 points

105 comments5 min readLW link

Being Half-Rational About Pascal’s Wager is Even Worse

Eliezer YudkowskyApr 18, 2013, 5:20 AM

62 points

162 comments9 min readLW link

Were atoms real?

AnnaSalamonDec 8, 2010, 5:30 PM

93 points

157 comments4 min readLW link

AI Safety without Alignment: How humans can WIN against AI

vicchainJun 29, 2023, 5:53 PM

1 point

1 comment2 min readLW link

The ongoing transformation of quantum field theory

Mitchell_PorterDec 29, 2012, 9:45 AM

32 points

19 comments3 min readLW link

Spooky Action at a Distance: The No-Communication Theorem

Eliezer YudkowskyMay 5, 2008, 2:43 AM

22 points

36 comments10 min readLW link

Decoherence

Eliezer YudkowskyApr 22, 2008, 6:41 AM

40 points

30 comments7 min readLW link

Configurations and Amplitude

Eliezer YudkowskyApr 11, 2008, 3:14 AM

71 points

361 comments10 min readLW link

The goal of physics

Jim PivarskiSep 2, 2023, 11:08 PM

46 points

4 comments5 min readLW link

Deconfusing Landauer’s Principle

EuanMcLeanMay 27, 2022, 5:58 PM

58 points

15 comments15 min readLW link

Brute-forcing the universe: a non-standard shot at diamond alignment

Martín SotoNov 22, 2022, 10:36 PM

9 points

2 comments20 min readLW link

Heat vs. Motion

Eliezer YudkowskyApr 1, 2008, 3:55 AM

53 points

70 comments5 min readLW link

Neural Scaling Laws Rooted in the Data Distribution

aribrillFeb 20, 2025, 9:22 PM

7 points

0 comments1 min readLW link

(arxiv.org)

Weird question: could we see distant aliens?

paulfchristianoApr 20, 2018, 6:40 AM

34 points

78 comments3 min readLW link

If Many-Worlds Had Come First

Eliezer YudkowskyMay 10, 2008, 7:43 AM

96 points

189 comments9 min readLW link

Wobbly Table Theorem in Practice

MorpheusSep 28, 2023, 2:33 PM

24 points

0 comments2 min readLW link

[Question] Does biology reliably find the global maximum, or at least get close?

Noosphere89Oct 10, 2022, 8:55 PM

24 points

71 comments1 min readLW link

A Novel Idea for Harnessing Magnetic Reconnection as an Energy Source

resonovaJan 12, 2025, 5:11 PM

0 points

8 comments3 min readLW link

[Question] A post-quantum theory of classical gravity?

Logan ZoellnerJan 23, 2023, 8:39 PM

13 points

5 comments1 min readLW link

Shock Level 5: Big Worlds and Modal Realism

RokoMay 25, 2010, 11:19 PM

39 points

158 comments4 min readLW link

Astrobiology, Astronomy, and the Fermi Paradox II: Space & Time Revisited

CellBioGuyMar 10, 2016, 5:19 AM

35 points

35 comments1 min readLW link

Could a superintelligence deduce general relativity from a falling apple? An investigation

titotalApr 23, 2023, 12:49 PM

148 points

39 comments9 min readLW link

Negentropy Overrated?

paulfchristianoDec 29, 2011, 10:14 AM

38 points

32 comments1 min readLW link

A Butterfly’s View of Probability

Gabriel WuJun 15, 2022, 2:14 AM

29 points

17 comments11 min readLW link

Should We Ban Physics?

Eliezer YudkowskyJul 21, 2008, 8:12 AM

23 points

22 comments2 min readLW link

Quantum without complication

Optimization Process and Orborde

Jan 16, 2025, 8:53 AM

30 points

2 comments10 min readLW link

Boxxy and Reagan

[deleted]Mar 13, 2009, 6:36 AM

−5 points

1 comment1 min readLW link

Can we model technological singularity as the phase transition?

Valentin2026Dec 26, 2020, 3:20 AM

4 points

3 comments4 min readLW link

[Question] Does reversible computation let you compute the complexity class PSPACE as efficiently as normal computers compute the complexity class P?

Noosphere89May 9, 2023, 1:18 PM

6 points

14 comments1 min readLW link

Vacuum: Theory and Technologies

nomagicpillJan 21, 2024, 5:23 PM

33 points

0 comments25 min readLW link

(210ethan.github.io)

“Are Experiments Possible?” Seeds of Science call for reviewers

rogersbaconNov 2, 2022, 8:05 PM

8 points

0 comments1 min readLW link

Thermodynamic entropy = Kolmogorov complexity

Aram EbtekarFeb 17, 2025, 5:56 AM

70 points

12 comments1 min readLW link

(doi.org)

Are we inside a black hole?

JayJan 6, 2024, 1:30 PM

2 points

5 comments1 min readLW link

Untitled Draft

Михаил ЗахарченкоMay 7, 2025, 3:59 PM

1 point

0 comments2 min readLW link

Ion Implantation: Theory, Equipment, Process, Alternatives

nomagicpillMay 8, 2022, 10:30 PM

5 points

0 comments16 min readLW link

(210ethan.github.io)

Make more land

jefftkOct 16, 2019, 11:20 AM

167 points

36 comments2 min readLW link 5 reviews

(www.jefftk.com)

The So-Called Heisenberg Uncertainty Principle

Eliezer YudkowskyApr 23, 2008, 6:36 AM

40 points

23 comments7 min readLW link

What does “the universe is quantum” actually mean?

TahpJul 22, 2024, 11:52 AM

2 points

0 comments14 min readLW link

Relativity Theory 2.0 – A Fractal Information-Based Model of Reality

Karsten LubigApr 7, 2025, 6:03 PM

1 point

0 comments2 min readLW link

No One Can Exempt You From Rationality’s Laws

Eliezer YudkowskyOct 7, 2007, 5:24 PM

133 points

53 comments3 min readLW link

Where Physics Meets Experience

Eliezer YudkowskyApr 25, 2008, 4:58 AM

76 points

38 comments11 min readLW link

Properties of current AIs and some predictions of the evolution of AI from the perspective of scale-free theories of agency and regulative development

Roman LeventovDec 20, 2022, 5:13 PM

33 points

3 comments36 min readLW link

[Cross-post]The theoretical computational limit of the Solar System is 1.47x10^49 bits per second.

William the Kiwi Oct 17, 2023, 4:06 PM

8 points

10 comments1 min readLW link

The harnessing of complexity

geduardoNov 10, 2022, 6:44 PM

6 points

2 comments3 min readLW link

An information-level interpretation of wave function “collapse”

BeatrixPotterFeb 7, 2025, 1:02 AM

1 point

0 comments1 min readLW link

On Being Decoherent

Eliezer YudkowskyApr 27, 2008, 4:59 AM

25 points

78 comments7 min readLW link

Entangled Photons

Eliezer YudkowskyMay 3, 2008, 7:20 AM

16 points

11 comments6 min readLW link

The Genesis Project

aproteinengineDec 19, 2024, 9:26 PM

15 points

0 comments1 min readLW link

(genesis-embodied-ai.github.io)

[Question] Formation via nucleation of boltzmann brains

Zeruel017Jun 1, 2022, 6:05 PM

0 points

9 comments1 min readLW link

[Question] What causes randomness?

lotsofquestionsFeb 23, 2023, 6:50 PM

1 point

12 comments1 min readLW link

Clarifying the free energy principle (with quotes)

Ryo Oct 29, 2023, 4:03 PM

8 points

0 comments9 min readLW link

Are you in a Boltzmann simulation?

Stuart_ArmstrongSep 13, 2018, 12:56 PM

23 points

29 comments3 min readLW link

Question Gravity

Isaac KingJan 13, 2022, 6:30 AM

50 points

7 comments2 min readLW link

Newton’s second law explained: it works in many universes

TahpMay 5, 2025, 7:47 PM

19 points

10 comments15 min readLW link

(quark.rodeo)

Mathematics As Physics

Nox MLDec 6, 2023, 10:27 PM

−2 points

10 comments5 min readLW link

Does “Ultimate Neartermism” via Eternal Inflation dominate Longtermism in expectation?

Jordan ArelAug 17, 2024, 10:28 PM

6 points

1 comment3 min readLW link

How to destroy the universe with a hypercomputer

Trevor CappalloJul 5, 2022, 7:05 PM

2 points

3 comments1 min readLW link

Scott Aaronson on Born Probabilities

Wei DaiOct 2, 2009, 6:40 AM

39 points

8 comments4 min readLW link

Simple proofs of the age of the universe (or other things)

AstynaxSep 13, 2022, 6:20 PM

16 points

12 comments1 min readLW link

[Question] How does electricity work literally?

Long tryFeb 24, 2020, 1:27 PM

1 point

35 comments1 min readLW link

The (not so) paradoxical asymmetry between position and momentum

Erik JennerMar 28, 2021, 1:31 PM

21 points

10 comments4 min readLW link

[Question] What qualities does an AGI need to have to realize the risk of false vacuum, without hardcoding physics theories into it?

RationalSieveFeb 3, 2023, 4:00 PM

1 point

4 comments1 min readLW link

Why it took so long to do the Fermi calculation right?

Jan_KulveitJul 2, 2018, 8:29 PM

76 points

20 comments1 min readLW link

To reduce astronomical waste: take your time, then go very fast

Stuart_ArmstrongJul 13, 2013, 4:41 PM

70 points

50 comments3 min readLW link

An Intuitive Explanation of Quantum Mechanics

Eliezer YudkowskyJun 12, 2008, 3:45 AM

18 points

3 comments5 min readLW link

Did Artificial Superintelligence Exist at the Big Bang?

Aaron LiJan 30, 2025, 9:35 PM

1 point

0 comments2 min readLW link

Lazarus Axis: A Speculative Proposal to Pull the Impossible from Inside a Black Hole By Igor Matos

Igor MatosMay 14, 2025, 6:15 PM

1 point

0 comments2 min readLW link

Is Constructor Theory a useful tool for AI alignment?

A.H.Nov 29, 2022, 12:35 PM

11 points

8 comments26 min readLW link

Revisiting the Double-Slit Experiment: The Role of Material Interaction

János BálintOct 16, 2024, 2:11 PM

1 point

0 comments1 min readLW link

From Branes to Brains. How mathematical physics can be used in life sciences.

From_Branes_to_BrainsAug 31, 2021, 7:40 PM

22 points

3 comments1 min readLW link

~100 Interesting Questions

RohanSMar 30, 2023, 1:57 PM

53 points

18 comments9 min readLW link

Some perspectives on the discipline of Physics

TahpMay 20, 2024, 6:19 PM

17 points

3 comments13 min readLW link

(quark.rodeo)

Feynman Paths

Eliezer YudkowskyApr 17, 2008, 6:32 AM

45 points

33 comments4 min readLW link

Quantum Mechanics and Personal Identity

Eliezer YudkowskyJun 12, 2008, 7:13 AM

14 points

28 comments10 min readLW link

A multi-disciplinary view on AI safety research

Roman LeventovFeb 8, 2023, 4:50 PM

46 points

4 comments26 min readLW link

The Multiversal Civilizational Drift — A Personal Hypothesis By William Ooko Onyango

William OokoApr 20, 2025, 10:12 AM

1 point

0 comments2 min readLW link

The Theory Behind Loss Curves

James CamachoMay 6, 2025, 10:22 PM

16 points

3 comments4 min readLW link

(github.com)

[Question] Is “physical nondeterminism” a meaningful concept?

LironJun 16, 2019, 3:55 PM

23 points

15 comments1 min readLW link

On Falsifying the Simulation Hypothesis (or Embracing its Predictions)

lorepieriApr 12, 2021, 12:12 AM

8 points

17 comments5 min readLW link

AGI is Inevitable — Theoretical Physics Might Tell Us When

Bernard MinnMar 30, 2025, 4:31 AM

1 point

0 comments4 min readLW link

(medium.com)

The Beginning of Spacetime: An Entropic Model for the Geometry of Collapse and Coherence

TheThoughtXMay 21, 2025, 3:41 AM

1 point

0 comments3 min readLW link

ALICE detects the conversion of lead into gold at the LHC

azerganteMay 18, 2025, 9:38 AM

4 points

0 comments1 min readLW link

(home.cern)

The Unification of Physics and Metaphysics: 22 Axioms for All Existences

monkymind and GPT-4

Apr 30, 2023, 4:16 AM

−42 points

0 comments2 min readLW link

[Question] Can we really prevent all warming for less than 10B$ with the mostly side-effect free geoengineering technique of Marine Cloud Brightening?

mako yassAug 5, 2019, 12:12 AM

94 points

55 comments2 min readLW link

The Born Probabilities

Eliezer YudkowskyMay 1, 2008, 5:50 AM

38 points

82 comments6 min readLW link

The Theory of Universal Connectivity in Quantum Mechanics

János BálintOct 16, 2024, 2:19 PM

1 point

0 comments1 min readLW link

Belief in the Implied Invisible

Eliezer YudkowskyApr 8, 2008, 7:40 AM

66 points

34 comments6 min readLW link

Does the universe’s recognition of measurement provide stronger evidence for being in a simulation than universal fine-tuning?

ameliaApr 9, 2025, 8:20 AM

0 points

0 comments4 min readLW link

Quantum Web Hypothesis (QWH): Exploring the Intersection of Human-AI Collaboration and Speculative Physics

SystematicApproachAug 13, 2024, 6:01 PM

1 point

0 comments9 min readLW link

Joint Configurations

Eliezer YudkowskyApr 11, 2008, 5:00 AM

79 points

40 comments4 min readLW link

Theory 1–4

Arilwen OrilothMay 22, 2024, 4:08 PM

1 point

0 comments1 min readLW link

A new intro to Quantum Physics, with the math fixed

titotalOct 29, 2023, 3:11 PM

113 points

24 comments17 min readLW link

(titotal.substack.com)

Other Constructions of Gravity

michaelcohenJun 9, 2021, 8:06 PM

4 points

2 comments2 min readLW link

Time and Energy Costs to Erase a Bit

DaemonicSigilMay 6, 2023, 11:29 PM

24 points

32 comments7 min readLW link

Decelerating: laser vs gun vs rocket

Stuart_ArmstrongFeb 18, 2019, 11:21 PM

31 points

16 comments4 min readLW link

Timeless Control

Eliezer YudkowskyJun 7, 2008, 5:16 AM

47 points

69 comments9 min readLW link

Timeless Beauty

Eliezer YudkowskyMay 28, 2008, 4:32 AM

24 points

70 comments4 min readLW link

A New Perspective on Light and Spacetime: Rethinking Light as Stationary

Rdcope97Dec 19, 2024, 6:47 PM

1 point

0 comments2 min readLW link

Physics is Ultimately Subjective

Gordon Seidoh WorleyJul 14, 2023, 10:19 PM

5 points

34 comments3 min readLW link

Which Basis Is More Fundamental?

Eliezer YudkowskyApr 24, 2008, 4:17 AM

29 points

39 comments6 min readLW link

What if Being Less Wrong is at the Base of the Universe?

Aldo CernutoMar 13, 2025, 8:11 AM

1 point

0 comments3 min readLW link

Technological Resurrection: Two Possible Approaches

Alex PolischukMar 14, 2022, 5:53 PM

−3 points

3 comments2 min readLW link

Units Have More Depth Than I Thought

MorpheusMay 21, 2025, 1:51 PM

30 points

2 comments1 min readLW link

[Question] What is the most probable AI?

Zeruel017Jun 20, 2022, 11:26 PM

−2 points

0 comments3 min readLW link

[Link] The Greek Heliocentric Theory

[deleted]Jun 12, 2012, 5:18 PM

55 points

11 comments3 min readLW link

Frugality and working from finite data

SnowyowlSep 3, 2010, 9:37 AM

35 points

47 comments4 min readLW link

Where Experience Confuses Physicists

Eliezer YudkowskyApr 26, 2008, 5:05 AM

43 points

30 comments8 min readLW link

[Link] Wavefunctions: from Linear Algebra to Spinors

senDec 7, 2022, 12:44 PM

11 points

12 comments1 min readLW link

(paperclip.substack.com)

Quantum Non-Realism

Eliezer YudkowskyMay 8, 2008, 5:27 AM

56 points

40 comments8 min readLW link

Decoherent Essences

Eliezer YudkowskyApr 30, 2008, 6:32 AM

24 points

36 comments7 min readLW link

LA-602 vs. RHIC Review

Eliezer YudkowskyJun 19, 2008, 10:00 AM

62 points

62 comments6 min readLW link

Emergence Is a Universal Non-Zero-Sum Phenomenon.

James Stephen BrownMay 14, 2024, 8:06 AM

6 points

0 comments1 min readLW link

(nonzerosum.games)

[Question] In a lack of data, how should you weigh credences in theoretical physics’s Theories of Everything, or TOEs?

Noosphere89Sep 7, 2022, 6:25 PM

7 points

11 comments1 min readLW link

Decoherence is Simple

Eliezer YudkowskyMay 6, 2008, 7:44 AM

71 points

62 comments11 min readLW link

The Conscious Sorites Paradox

Eliezer YudkowskyApr 28, 2008, 2:58 AM

18 points

41 comments5 min readLW link

Classical Configuration Spaces

Eliezer YudkowskyApr 15, 2008, 8:40 AM

41 points

11 comments5 min readLW link

Debugging the Quantum Physics Sequence

Mitchell_PorterSep 5, 2012, 3:55 PM

43 points

130 comments2 min readLW link

Philosophy as low-energy approximation

Charlie SteinerFeb 5, 2019, 7:34 PM

41 points

20 comments3 min readLW link

The Brain is Not Close to Thermodynamic Limits on Computation

DaemonicSigilApr 24, 2023, 8:21 AM

167 points

58 comments5 min readLW link

Einstein’s Arrogance

Eliezer YudkowskySep 25, 2007, 1:29 AM

184 points

90 comments3 min readLW link

Distinct Configurations

Eliezer YudkowskyApr 12, 2008, 4:42 AM

76 points

25 comments6 min readLW link

Reality and reality-boxes

Jim PivarskiMay 13, 2023, 2:14 PM

37 points

11 comments21 min readLW link

Explanations as Hard to Vary Assertions

AlexanderSep 24, 2021, 11:33 AM

17 points

27 comments8 min readLW link

And the Winner is… Many-Worlds!

Eliezer YudkowskyJun 12, 2008, 6:05 AM

30 points

12 comments9 min readLW link

Identity Isn’t In Specific Atoms

Eliezer YudkowskyApr 19, 2008, 4:55 AM

58 points

73 comments6 min readLW link

Relative Configuration Space

Eliezer YudkowskyMay 26, 2008, 9:25 AM

22 points

22 comments8 min readLW link

Ask an experimental physicist

RolfAndreassenJun 8, 2012, 11:43 PM

49 points

295 comments1 min readLW link

What is space? What is time?

TahpJun 7, 2024, 10:15 PM

8 points

3 comments7 min readLW link

Entropy and Temperature

spxtrDec 17, 2014, 8:04 AM

39 points

96 comments3 min readLW link

Singularity&phase transition-2. A priori probability and ways to check.

Valentin2026Feb 8, 2021, 2:21 AM

1 point

0 comments3 min readLW link

Why Quantum?

Eliezer YudkowskyJun 4, 2008, 5:34 AM

36 points

52 comments6 min readLW link

Bell’s Theorem: No EPR “Reality”

Eliezer YudkowskyMay 4, 2008, 4:44 AM

40 points

30 comments9 min readLW link

Several Arguments Against the Mathematical Universe Hypothesis

Vittu PerkeleFeb 19, 2025, 10:13 PM

−4 points

6 comments3 min readLW link

(open.substack.com)

Explaining vs. Explaining Away

Eliezer YudkowskyMar 17, 2008, 1:59 AM

110 points

101 comments4 min readLW link

Collapse Postulates

Eliezer YudkowskyMay 9, 2008, 7:49 AM

57 points

66 comments3 min readLW link

Last Line of Defense: Minimum Viable Shelters for Mirror Bacteria

Ulrik HornDec 21, 2024, 8:28 AM

12 points

26 comments21 min readLW link

[Question] Does quantum mechanics predict all the effects of relativity except gravity?

EniScienJun 4, 2022, 1:52 PM

4 points

2 comments1 min readLW link

[Question] Formal “left” and “right” definitions

Roman NastenkoMar 30, 2024, 11:42 PM

1 point

1 comment1 min readLW link

A thought-process testing opportunity

[deleted]Apr 22, 2013, 7:51 PM

46 points

28 comments1 min readLW link

Decoherence is Pointless

Eliezer YudkowskyApr 29, 2008, 6:38 AM

18 points

5 comments2 min readLW link

The mathematical universe: the map that is the territory

ataMar 26, 2010, 9:26 AM

97 points

124 comments11 min readLW link

Is the universe all there is? ‘Evidence’ for objects outside the universe...

JonathanHallJan 14, 2024, 11:56 PM

−4 points

27 comments11 min readLW link

Mach’s Principle: Anti-Epiphenomenal Physics

Eliezer YudkowskyMay 24, 2008, 5:01 AM

42 points

26 comments10 min readLW link

No comments.