A plaque remaining from the Big Apple Night Club at West 135th Street and Seventh Avenue in Harlem.

Above, a 1934 plaque from the Big Apple Night Club at West 135th Street and Seventh Avenue in Harlem. Discarded as trash in 2006.

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Entry from December 08, 2018
“Schrödinger’s Cash: When you don’t know how much is in your bank account”

The paradox of “Schrödinger’s cat” is sometimes joked as “Schrödinger’s cash” or “Schrödinger’s money”—something that is both there and not there. “I have just discovered an interesting new variation to the “Schrodinger’s Cat” hypothesis - which I propose to call ‘Schrodinger’s Cash’” was posted on the newsgroup uk.local.cumbria on January 3, 2002. “I’m playing a little game called ‘Schrodinger’s Money’ with my wallet right now” was posted on Twitter by PiercePiercePiercePi on October 7, 2010. “The Euro Has Become Schrodinger’s Money: Goldman Sees European Currency As Both Alive And Dead” was an article posted on the financial blog Zero Hedge on November 28, 2010.

“Bitcoin is Schrodinger’s cash” was posted on Twitter by Bob Blakley on January 16, 2014. “‘Schrodinger’s Money’ would be a great name for a book about cryptocurrency” was posted on Twitter by Patrick Dugan on November 17, 2018.

“Schrodinger’s Cash - when you don’t check your bank balance you are both extremely rich and extremely poor” was posted on Reddit—Shower Thoughts on July 9, 2018. “Schrodinger’s Cash: When you don’t know how much is in your bank account so you’re both very rich and very poor” was posted on Reddit—Shower Thoughts on December 8, 2018.


Wikipedia: Schrödinger’s cat
Schrödinger’s cat is a thought experiment, sometimes described as a paradox, devised by Austrian physicist Erwin Schrödinger in 1935. It illustrates what he saw as the problem of the Copenhagen interpretation of quantum mechanics applied to everyday objects. The scenario presents a cat that may be simultaneously both alive and dead, a state known as a quantum superposition, as a result of being linked to a random subatomic event that may or may not occur.

Google Groups: uk.local.cumbria
Schrodinger’s cat variation
Ken B
1/3/02
Hi
To any scientifically minded people out there, I have just discovered an interesting new variation to the “Schrodinger’s Cat” hypothesis - which I propose to call “Schrodinger’s Cash”.

Briefly this states that if you put money into your wallet or purse, you are not sure whether it is going to be there or not the next time you open it.

Twitter
Brian C. Johnson
@Slipstream
Schrodinger’s Cash:  That time between submitting an invoice, and getting paid.  You cannot spend “Possible Money”, you want “Actual Money”.
10:56 PM - 7 Apr 2009

Twitter
Stewbacca
@monkeyinacoma
Deal or no deal= schrodinger’s cash. Also, had I come up with the idea I would have dismissed it as too stupid for tv.
11:30 AM - 25 Dec 2009

New Scientist
FEATURE 14 April 2010
Schrödinger’s cash: Minting quantum money
By Justin Mullins
(...)
Quantum physicists think a lot about cash. Not just any old money, you understand. They think about quantum cash. Quantum banknotes aren’t like credit cards or dollar bills. They are simply information: a mixture of bits – the 0s and 1s that we use to send electronic transactions – and quantum bits, or qubits, that are governed by the laws of quantum mechanics and can be both a 0 and 1 at the same time.

Twitter
PiercePiercePiercePi
@piercegleeson
I’m playing a little game called “Schrodinger’s Money” with my wallet right now.
7:22 AM - 7 Oct 2010

Zero Hedge
The Euro Has Become Schrodinger’s Money: Goldman Sees European Currency As Both Alive And Dead
by Tyler Durden
Sun, 11/28/2010 - 18:16
It’s time for a shirt: “Irish bondholders got a bailout and all the EURUSD managed was a measly 35 pips higher.

Twitter
Bob Blakley
@bobblakley
Bitcoin is Schrodinger’s cash.
6:12 PM - 16 Jan 2014

Twitter
Bankole Oluwafemi
@MrBankole
Schrodinger’s money: when you do an online bank transfer, and it’s no longer in your account and it hasn’t hit destination account
3:51 AM - 24 Sep 2015

Twitter
Laura
@NoToZombies
This country treats online banking like Schrodinger’s cash. If it’s not there physically, does it actually exist? ( ̄Д ̄)ノ
12:27 AM - 29 Jul 2016

Twitter
Stacy
@SilverStGroud
Schrodinger’s Cash: thought experiment whereby money is present in AND absent from your bank account until you check your balance to confirm
7:35 AM - 19 Aug 2017

Reddit—Shower Thoughts
Lottery tickets are Schrodinger’s money until you figure out if you won or not
submitted September 10, 2017 by I_am_not_Amish

Reddit—Shower Thoughts
Schrodinger’s Cash - when you don’t check your bank balance you are both extremely rich and extremely poor.
submitted July 9, 2018 by Mr_Simmonds

Urban Dictionary
Schrödinger’s Cash
Money that is gambled but the result is not known
I placed a bet on that football match but until it’s over it’s Schrödinger’s Cash
Alternative: Wow that deal looks amazing if I invest my money is stuck in Schrödinger’s Cash!

#gambling#quantum mechanics#schrodinger#cash#money#investment#cats
by Jurgen Flurgen October 16, 2018

Twitter
Patrick Dugan
@duganist
“Schrodinger’s Money” would be a great name for a book about cryptocurrency.
10:53 AM - 17 Nov 2018

Reddit—Shower Thoughts
Schrodinger’s Cash: When you don’t know how much is in your bank account so you’re both very rich and very poor.
submitted December 8, 2018 by Mr_Simmonds

Posted by Barry Popik
New York CityBanking/Finance/Insurance • Saturday, December 08, 2018 • Permalink