There have been multiple accounts created with the sole purpose of posting advertisement posts or replies containing unsolicited advertising.

Accounts which solely post advertisements, or persistently post them may be terminated.

lemmyshitpost

This magazine is from a federated server and may be incomplete. Browse more on the original instance.

Diabolo96 , in Share your favourite memes
niktemadur , in Quantum physics

This isn’t right.
It’s not even wrong.

(if you think you understand quantum physics, you don’t understand quantum physics)

That damn electron is NOT going through both slits at the same time! It’s doing something that we can’t even describe with words, only math!

dudinax ,

You’re wrong, it’s definitely going through both slits at the same time, but it’s not an electron at that time.

niktemadur ,

I’m not wrong… but I’m not even right!
I just enjoy quoting my favorite Wolfgang Pauli line.

Seriously now - “but it’s not an electron at that time” - is quite a doozy of a way of… erm… looking at it.

Goddamn it, I looked at it! Again! Which goddamn collapsed the goddamned wave function! I can’t seem to get anything done around here with my Newtonian/classical physics tools (level, pincers and a pendulum) and these here fancy, tiny subatomic particles.

bunchberry , (edited )

What is it then? If you say it’s a wave, well, that wave is in Hilbert space which is infinitely dimensional, not in spacetime which is four dimensional, so what does it mean to say the wave is “going through” the slit if it doesn’t exist in spacetime? Personally, I think all the confusion around QM stems from trying to objectify a probability distribution, which is what people do when they claim it turns into a literal wave.

To be honest, I think it’s cheating. People are used to physics being continuous, but in quantum mechanics it is discrete. Schrodinger showed that if you take any operator and compute a derivative, you can “fill in the gaps” in between interactions, but this is just purely metaphysical. You never see these “in between” gaps. It’s just a nice little mathematical trick and nothing more. Even Schrodinger later abandoned this idea and admitted that trying to fill in the gaps between interactions just leads to confusion in his book Nature and the Greeks and Science and Humanism.

What’s even more problematic about this viewpoint is that Schrodinger’s wave equation is a result of a very particular mathematical formalism. It is not actually needed to make correct predictions. Heisenberg had developed what is known as matrix mechanics whereby you evolve the observables themselves rather than the state vector. Every time there is an interaction, you apply a discrete change to the observables. You always get the right statistical predictions and yet you don’t need the wave function at all.

The wave function is purely a result of a particular mathematical formalism and there is no reason to assign it ontological reality. Even then, if you have ever worked with quantum mechanics, it is quite apparent that the wave function is just a function for picking probability amplitudes from a state vector, and the state vector is merely a list of, well, probability amplitudes. Quantum mechanics is probabilistic so we assign things a list of probabilities. Treating a list of probabilities as if it has ontological existence doesn’t even make any sense, and it baffles me that it is so popular for people to do so.

This is why Hilbert space is infinitely dimensional. If I have a single qubit, there are two possible outcomes, 0 and 1. If I have two qubits, there are four possible outcomes, 00, 01, 10, and 11. If I have three qubits, there are eight possible outcomes, 000, 001, 010, 011, 100, 101, 110, and 111. If I assigned a probability amplitude to each event occurring, then the degrees of freedom would grow exponentially as I include more qubits into my system. The number of degrees of freedom are unbounded.

This is exactly how Hilbert space works. Interpreting this as a physical infinitely dimensional space where waves really propagate through it just makes absolutely no sense!

dudinax ,

but this is just purely metaphysical.

But there really is an interference pattern. Whatever is happening is physical, not metaphysical, and is happening “through” or “because of” both slits at the same time.

Unless you’re trying to argue that the statistical behavior of electrons is somehow decoupled from the behavior or each individual electron, which would seem to me to be a very odd metaphysical position.

idunnololz , in Benjamin: hold my fucking beer
@idunnololz@lemmy.world avatar

Wait. Can I commit a war crime if there isn’t a war near me?

wondrous_strange ,

Don’t be a pussy just start one

snooggums , in Not helpful.
@snooggums@midwest.social avatar

Actually helpful, because there are no unwrittin rules.

There are people who have assumptions and expecations, and everyone else goes along with it.

WhiskyTangoFoxtrot ,

If you get punished for breaking it, it’s a rule.

snooggums ,
@snooggums@midwest.social avatar

People get punished for all kinds of things that aren’t rules.

Certain people are not punished for breaking rules.

some_guy , in Who says OSHA compliance doesn't have to be fun?

I can’t tell if this is intentionally hilarious or not, but it certainly made me laugh.

Shou , in Words truly matter

More of that masaru emoto crap.

Donebrach , in Ayyy
@Donebrach@lemmy.world avatar

Is this pictures of spoderman?

lauha ,

Probably shoederman

toynbee ,

No, Spoodermang.

DoucheBagMcSwag ,

Fuk u gooby

Klear ,

Perkr pls

python , in Words truly matter

Is this like, some weird parent “lesson” thing you’re actually supposed to fake? Like maybe you’re supposed to put some vinegar in the good jar to prevent mold growth, and the goal is to make your dumbass children behave?

Entropywins ,

No better lesson learned than being lied to by those in authority…

_g_be ,

2 lessons in one!

A_Union_of_Kobolds ,

Yeah there aren’t any lasting affects from that at all

Said the nearly 40yo anarchist

FlyingSquid , in How to treat a man
@FlyingSquid@lemmy.world avatar

This comment section is a shitshow and OP admits to being a troll. Locking this thread.

Slovene , in Not helpful.

Is it

  1. Be attractive
  2. Don’t be unattractive

?

FlyingSquid OP ,
@FlyingSquid@lemmy.world avatar

More like:

  1. Be rich.
  2. Don’t not be rich.
GladiusB ,
@GladiusB@lemmy.world avatar
  1. Be both
  2. Have a good taste in music
VubDapple , in Ayyy

This might be the best example of pareidolia I’ve ever seen. Perfection!

Toneswirly , in It is what it is

Shrek Memes are so hot right now.

iAvicenna , in Malk?
@iAvicenna@lemmy.world avatar

Kumis

TheReturnOfPEB , in It is what it is

my most current aphorism of nihilism has been, “You get what you get.”

MehBlah , in Cords

I’ve used a suicide cord before in some rare instances. When I was finished I immediately took it apart.

Entropywins ,

You didn’t do it right…

scottywh ,

I used to use one to get power into my popup camper…

Duamerthrax ,

Where was the power originally suppose to come in? They make power “Inlets” for that sort of thing. This one is designed with an Interconnect Switch for hooking into a system with Mains, but a camper with outlets should just have a inlet somewhere.

scottywh ,

Fuck if I know… I bought the thing used from a buddy like 12 years ago and that was the cord he’d always used … Plugs into a regular outlet on the outside of the camper and then the outlets inside have power.

/me shrugs

  • All
  • Subscribed
  • Moderated
  • Favorites
  • [email protected]
  • random
  • lifeLocal
  • goranko
  • All magazines