Beyond #Schrodinger's #Cat: the #paradox of Wigner's Friend [3rd in a #series]

❛❛ When exactly does the collapse of the #photon #superposition occur? Was it when the #friend had finished his #experiment? Or when the #information of his result enters Wigner's #consciousness? ❜❜ 2:45/5-min.

🔗 https://www.youtube.com/watch?v=5AodzEpvzZw 2019 May 29
🔗 https://Wikipedia.org/wiki/Wigner%27s_friend … #WignersFriend
🔗 https://Wikipedia.org/wiki/Eugene_Wigner … #EugeneWigner

#KronoSeries #QuantumObserver #Wigner #quantumphysics #science #Kronodon

a short vid about the dev of the h bomb #the martians v2 #teller #wigner #ulam #neumann #oppenheimmer #maths #isotopes

https://www.youtube.com/watch?v=fTIbSVEVVY0

Heute gibt es interessante Wissenschaftliche Veröffentlichungen.
Der Wigner-Kristall besteht nur aus Elektronen und ist jetzt fotografiert worden.

https://futurezone.at/science/wigner-kristall-quanten-elektronen-foto-mikrosokop/402856849?fbclid=IwAR38KA3xtC7iM-F-QIvZ5rJ3V0RdWZ5-uSvST7ruIgoWopU-twfDy46RD-w

#kristall #physik #wigner

Wigner's claim is a clear-cut case of survivor bias:
Of all the possible mathematical claims a vanishingly small number can be **adapted** to physics (in itself unsurprising, considering that's what we have developed it for).

His claim is popular because a large number of people want the world to be orderly, despite evidence to the contrary, not because it is in any way correct.

For it to be "unreasonable" one would expect physicists to be able to forego empiricism, and just roll out physics from mathematical first principles.

THAT would be "unreasonable effectiveness".

But of the severally several infinities of possible math statements, a non-contiguous spattering of statements find some use in physics - to describe patterns that are found empirically.

That is not impressive in the least.

@philosophy #wigner #mathematics #platonism #bias

For this week’s #FollowFriday, an updated list of my favorite #NoNukes / #NoWar accounts. Some of you from the bird site may recognize some familiar accounts! #FF

@NoelWauchope
Long term anti-nuclear activist #anti-nuclear #nuclear-Free #NoNukes Facebook Substack

@bojacobs

Nuclear historian at the #Hiroshima Peace Institute. Book - Nuclear Bodies: The Global Hibakusha - Yale 2022. I work on the global human & ecological harm from nuclear production, nuclear weapon tests, reactor accidents. I examine the impacts on communities, families & emotions; long-term ecological presence of fallout #radionuclides; the legacy of our #NuclearWaste to 1,000s of generations of our descendants. 
#histodons #nuclear #Hiroshima #peace

@CNDuk

The Campaign for Nuclear Disarmament. Find out more: cnduk.org

@nukes_of_hazard
Center for Arms Control and Non-Proliferation. Working to limit & eventually eliminate the nuclear threat through Congressional & public outreach.

@YourAnonRiots
(Has timely #Fukushima posts!)
In the name of all #digital warriors, we warriors promise to participate in the #Anonymous.CC3 #HackThePlanet #AnonOps #infosec #Antifa

@brianpjcronin

(Covers #IndianPoint and #Holtec)
#Environmental Reporter for The Highlands Current: An award-winning, non-profit, independent newspaper in New York's Hudson Valley. I also teach journalism at Marist College. Not actually a cat.

@ausgestrahlt

#Atomkraft? Nein Danke! Wir streiten für eine Welt ohne #Atomenergie.
Nuclear power? No thank you! We are fighting for a world without nuclear energy.

@AntiAtomNetzTrier
We, #AntiAtom #AntiAKW moving people from #Trier and the surrounding area, are committed to the decommissioning of all nuclear plants and an ecological #Energiewende (decentralized and democratic, i.e. in the hands of citizens!). We oppose the French repository project #Bure in Lorraine with the resistance house #BureZoneLibre and for the closure of the #AKW #Cattenom. In addition, we support the switch to #Ökostrom|providers without #Atom or #Kohle|corporations as well as to corresponding banks.

@Achim

Energy historian, with a focus on Soviet and Russian nuclear programmes. PhD candidate at KTH Royal Institute of Technology in Stockholm, Sweden.

@123456Moto

(My lifeline here on Mastodon. Posts Leilani Athenaire’s tweets and news from #Japan)

@bsmall2
Born in USA, PA. Living in Kyushu, Miyazaki. Graded Direct Method(GDM) teacher. DrRacket (Racket-Language) hobbyist. GNU/Linux Debian Gnome and emacs user. Learning from the 公害(Catastrophic Polluting of the Commons) in Minamata 水俣 and Toroku 土呂久.

@pandapanda
Peace of mind and acceptance of the unchangeable The courage to change what can be changed. May you have the wisdom and compassion to discern both

@fukumeltdowns
Fukushima #ELE #ClimateEmergency #NuclearCrimes
Stay UN-TUNA-ED! #Wigner
#RadBrain #NoMoreWars #NoNukes #AllTheSpentFuelPoolsAreCracked
#OpShutDownAllNukesNow

@SZKN29
Illustrator, picture book author, care worker. I mainly cover Futaba District, Fukushima Prefecture on foot. A total of 410 km was covered. Tokyo Shimbun "Drawing Invisible Radioactivity"

@armscontrolnow
The #ArmsControl Association, founded in 1971, is a nonpartisan membership organization dedicated to promoting public understanding of and support for effective arms control policies.

`This report offers fundamental tools and methods for experimental execution and #theoretical analysis of #ultrafast #crystallography. We emphasize the use of phase-space representation of the density matrix using the #Wigner transform to visualize the coherent motions that are seen...These methods are generally applicable, and their purpose is fully demonstrated with this example of ultrafast #structural #dynamics of a reversibly #photoswitching #fluorescent #protein`

https://www.nature.com/articles/s41557-023-01275-1

#PaulDavies - Why the ‘Unreasonable Effectiveness’ of #Mathematics

https://www.youtube.com/watch?v=PmgPoWZTOgo&ab_channel=CloserToTruth

#Philosophy #PhilosophyOfScience #PhilosophyOfMathematics #Math #Maths #Logic #Metaphysics #Physics #EugeneWigner #Wigner #CloserToTruth #RobertKuhn