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/sci/ - Science & Math

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5678967 No.5678967 [Reply] [Original]

A layman asks you, "How does the universe work?"
What is your answer?

>> No.5678970

"The scope of your question is too broad. Please rephrase."

>> No.5678988

"It doesn't"

And then I fly off into the sunset.

>> No.5678994

magic

>> No.5678999

It doesn't work

It is

>> No.5679001

logic and strange loops

>> No.5679003

>>5678967
INSUFFICIENT DATA FOR A MEANINGFUL ANSWER

>> No.5679013

>>5678967
K, rephrasing the question.
How does the universe function on a quantum level?
How does it function in terms of relativity?

>> No.5679029

>>5679013
How does the universe quantize chocolate at the speed of France's 1970s Olympic track contenders?

>> No.5679065

>>5679003

Collect additional data

>> No.5679072

"I dunno, how do you think it works?"

Cue enlightening conversation.

>> No.5679076

"fucked if I know. Go ask a physicist or something."

>> No.5679125 [DELETED] 
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5679125

Swag.
inb4 report.

>> No.5679138

>"How does the universe work?"
Universally

>> No.5679157

Traditionally, we go for it's function and call it "work".

I think the best explanation I ever heard was:

We think we know how this piece works.

>> No.5679165

"Very carefully"

>> No.5679177

>>5679013
>How does the universe function on a classical level?
Physics are dominated by trajectories.

>How does the universe function on a quantum level?
Physics are dominated by probabilities.

>How does it function in terms of relativity?
Physics are dominated by coordinate transformations.

>> No.5679179 [DELETED] 
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5679179

>>5678967
"Radiation"

>> No.5679183
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5679183

>>5679177
... huh

>> No.5679195

>>5679183
Trajectory functions, probability fields, and coordinate matrices, OH MY!

>> No.5679200

It doesn't

/thread

>> No.5679205

>>5679200
Then explain what the fuck I am looking at right now because it looks eerily similar to a working universe.

>> No.5679212

>>5679205

It is a mystery

>> No.5679214

The Radon-Nikodym derivative between a centred fractional Brownian motion Z and the same process with constant drift is derived by finding an integral transformation which changes Z to a process with independent increments. A representation of Z through a standard Brownian motion on a finite interval is given. The maximum-likelihood estimator of the drift and some other applications are presented.

>> No.5679215

>>5678967
I'm not Carl Sagan, so I can't explain the universe to idiots.

>> No.5679217

>>5679212
everything will always be a mystery to people like you
You can't put 10 words together, but you can dismiss everything so readily.
Praise Jesus

>> No.5679219
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5679219

>>5679217

Amen brother

>> No.5679223

>>5679219
alhamdulellah sister

>> No.5679234

>>5678967
>it doesn't, which is why we have people asking these kinds of questions

>> No.5679259
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5679259

Same as I worked on your mom's asshole last night, mate.

>> No.5679540
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5679540

>>5678967
Serious answer for OP condensed for the everyman:

"Fundamentally there is space, and within this space there is a tendency for something called energy that can be expressed in various forces on a macroscopic level. Energy is very transient but can become more stable in forms which we speculatively call particles. The reason that these particles (as they relate to one another) make up everything that we know is because their stability allow for sustained existence which can last for what we would call billions of years."

>> No.5679558

>>5679177
This is not a good answer because it describes how we can calculate and predict (physics) but not how or why. 2/10

>> No.5679570

the universe doesn't work, it just is

>> No.5679579

>>5678967
particles have wave like properties governed by an equation called the Schr?dinger equation. The solutions to this equation are called wave functions. The wavefunction describes the probability of finding the particle in any area in space. one consequence of this wave like nature of reality is that a particles speed and position cannot both be defined or exist as just a single quantity at the same time, instead there is a spread of values like you might expect for a wave.

Also, nothing can travel faster than the speed of light, particles at rest have an energy associated with them, lots of gravity or speed can cause time to slow down for one person relative to another

>> No.5679581

>>5679570
The universe is the only thing that does work:
W=Fd

>> No.5679599
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5679599

>> No.5679615

>>5678967

The universe is a gigantic cellular automaton, Bro.

>> No.5679626

well if you see time just as energy evaporating by entropy you are pretty close to describing everything to a layman.

>> No.5679646

Can someone tell me why dark matter is a better theory than just assuming our understanding of gravity is wrong?

>> No.5679650

>>5679646

Because throwing baby out with bathwater.

>> No.5679659

<span class="math"> \delta S = 0 [/spoiler]

>> No.5679679

>>5679646
>Can someone tell me why dark matter is a better theory than just assuming our understanding of gravity is wrong?

That question doesn't make a lot of sense, so I have to assume you have some kind of misconception about what dark matter is, how it was discovered, and how it is observed. Try reading the Wikipedia article on it.

>> No.5679712
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5679712

"nanomachines"

>> No.5679716

"Shut up it's magic"

>> No.5679729
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5679729

>>5679646
Dark Matter explains inconsistencies with our observations at many different scales (like problems with the rotation curves of spiral galaxies and observations of galactic interactions) without having to drastically alter our working model of gravity.

The big hurdle for Modified Newtonian Dynamics (MOND) theories is that they typically require gravity to work very differently at different scales. The 'corrections' for gravity at the local scale is different from the ones for the galactic, intergalactic, or very large scales, and in most of the MOND models I've seen there doesn't seem to be any obvious relation between the corrections and the scales.

When you're looking for a scientific theory to explain observations, you typically look for the theory that's the least complex - the one that requires the fewest assumptions, the fewest additional parameters, and the one that works better for more general situations.

>> No.5679853
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5679853

God is the only answer.

>> No.5679968

>>5679729
Why wouldn't it make sense for gravity to work differently on different scales?

>> No.5679978

>>5679558
>it describes how
>but not how

>> No.5679986

"I don't really know. But here's my best stab at it using the motley knowledge I have with the caveat that there's much more intelligent people who have a better idea..."

>> No.5680843
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5680843

>>5679853

dat filename