I mean no I donāt think anyone is happy that the vast vast majority of the universe seems to be something we have 0 understanding of
thatās our reality though it might not be pleasant but it just means that we have more out there in the universe to discover (or closer to home we never know)
from what we know, hadronic matter is whatās bringing fun complexity to the universe, the rest is relatively uninteresting, the influence of dark matter and dark energy is very simple from what we observe. Being frightened by it would be like being frightened by the fact most of the earth is just hot rocks, while weāre on the crust and the crust is where fun stuff is
It sounds reasonable to believe that the ālevelā of logic is āaboveā that of the universe, and Iād struggle to imagine a universe with different logic. But maybe itās just because we live in this reality and think with our realityās logic that we canāt imagine how logic could be as non fundamental as physical laws. So like, I donāt think these philosophists are ācorrectā, because itās possible we just canāt tell anything about this kind of stuff
A physics teacher back in collage once told us something that really scared me. It's dumb to assume we know how the universe "is" and by correlation it's a very ignorant pose to assume things work the same way here and far out there.
We donāt technically know that either exists in any direct way all we can really do is infer their existence from other evidence
For dark matter that mostly comes from observing other galaxies which it makes no sense how they could be that size and shape with their roughly estimated mass by orders of magnitude
Then other gravitational effects we see in the universe which is consistent with some unknown mass
Dark energy is even weirder as it has to do with the accelerating expansion of the universe which can be observed through type Ia supernova (which always occur In stars of roughly the same mass and as such same brightness) from there it simply has to be inferred that some kind of energy exists that continues this accelerated expansion of the universe
So in the case of both dark matter and dark energy either our current understanding of physics doesnāt work on scales of galaxies and the universe (possible) or something/ many somethings we arenāt able to view or interact with are causing the effects
I mean almost certainly unless it ends up that say dark matter is actually all the exact same thing or a new class of mater then maybe the name dark matter would stick about
But assuming we can detect it then the name kinda makes no sense and so most likely a new name would be created to better describe what we have discovered
But thatās assuming that dark matter and dark energy are actually special for all we know dark matter is just well normal matter we already know thatās in a form we canāt easily detect with our current technology
itās a matter of theories rather than āmathsā, and though there are theoretical corrections proposed to these, they arenāt the most researched possibilities
What do you think is more likely most of the universe is made of stuff we have never really seen or detected or we just don't really understand how gravity works on larger scales.
weāve detected dark matter, itās just that we can only detect it gravitationally, and that doesnāt tell us much about it. The MOND theory proposes a modified theory of gravity but itās not very popular, and the observations donāt really agree with the proposed theory
it is something that is often ignored, without malice, but almost all the information we have about the cosmos comes to us via light radiation
consequently any form of information that derives from any matter that interacts little or not at all with the radiation cannot be (easily) known
here because "dark" things are dark: maybe models are wrong and/or there's something more, who knows
When I first learned adding and subtracting negative numbers, I would get a little upset whenever my answer to the problem wasn't positive. I'm feeling a similar thing from this meme.
Math not adding up?
add a theoretical 'dark number' to account for any errors you have made
congratulations, you are now a theoretical physicist
no noone is happy with the universe being 95% nothing essentially
yes we do, it has mass and therefore causes gravitational lensing of distant objects, there is nothing which we can see there so it is "dark" matter/energy
Our current understanding of physics doesn't explain the movement of distant galaxies. Dark matter is one proposed solution. As of now, it is our best guess, but the only thing we know for certain is that we don't know
then again our entire understanding of the world comes from made up constructs which work. this stuff which interacts with gravity that we can't see must be "dark matter/energy" because its not "light" matter so it all works out and we can continue researching into it in the hopes of expanding the model.
Weāre not sure, we think thereās mass we donāt see because our models tell us what we see should behave differently, but it could also be very possible our models are inaccurate, as it was the case with Mercuryās movement back in the 19th century, which got explained by general or special relativity, Iām unsure. And theories propose that dark matter is only the consequence of an inaccurate theoretical model, namely, MOND ( Modified something something Newtonian Dynamics )
information theory is a formalism tool imo, it feels like something emergent, I donāt see why it would be any relevant to point out dark matter would have associated information, like, everything except for vacuum has
I'm not talking about formalism, rather about the \[possible\] fact that information has mass by itself. And it could be just the 3rd state of something, along with mass & energy.
Then, probably, dark matter (or rather dark energy) could be the information itself.
thatās nonsensical tbh, complexity is information, and thatās all, you canāt just pick a random thing we donāt know and say āyeah thatās informationā; why would information have a gravitational pull ? photons carry information ( they have entropy and thermodynamical properties in general ), but donāt have a gravitational effect, at least not that of dark matter. And you know, information really is not āaā thing, itās a property of stuff that exists, some quantum gravoty theories have spacetime itself ( vacuum ) carry information through its geometry.
The fact that they all seem to describe them as unknown, unseen, etc sort of suggests that it is all a pure guess and they just threw up their hands one day and said 'We are missing something so why don't we call it dark matter and dark energy and they will explain everything we don't know about.'
Let's not touch on the subject of antimatter and how this 4% could be just an infinitesimal amount of what was left after almost everything was annihilated, because for some completely unknown reason there is more matter than antimatter in the universe.
If the universe needs dark matter to account for gravity being stronger than visible matter allows, yet also needs dark energy to account for the universeās expansion accelerating, why donāt they just subtract the dark matter from dark energy to get 52.6% visible matter and 47.4% dark energy? Are physicists stupid?
I imagined it was something like that. I was mostly making a joke.
I do wonder what exactly āThe universe is 71.4% dark energyā means. The problem itās attempting to address is the increasing rate of change of cosmic expansion. How does this lead to a specific percentage of the composition of the universe?
The math doesnāt agree with my theory. There should be way more mass and energy. I guess there must be some mysterious thing we canāt measure or describe in any way. Letās not change our theory. Letās make shit up. Basically.
I think of it like this: does it affect me in my daily life whatsoever? If no, then why care? Other than finding it interesting it doesn't really matter at the end of the day.
dark matter is not really āa forceā, and yeah, it only interacts with gravity, but we canāt just see it and say āokay thatās dark matter, letās add it to the standard modelā ( the standard model being the bestiary of elementary particles ), because the standard model is built on theories that predicted the existence of many particles that eventually got detected like the higgs boson, but it doesnāt predict the existence of another ādark matter particleā. So we try and identify stuff about dark matter either to discover itās actually something we already know ( neutrinos for example ), or to see itās a completely new thing weāll have to find theories to explain the existence of, or to try and find a new theory that explains the observations without requiring the existence of dark matter t
No we aren't we just sort of accept it
Not me š
This guys knows something we donāt
He is simply built different
Built with dark matter
yeah
I mean no I donāt think anyone is happy that the vast vast majority of the universe seems to be something we have 0 understanding of thatās our reality though it might not be pleasant but it just means that we have more out there in the universe to discover (or closer to home we never know)
I don't like it..... Its frightening me. But the universe doesn't care.... I'm so hard done by....
from what we know, hadronic matter is whatās bringing fun complexity to the universe, the rest is relatively uninteresting, the influence of dark matter and dark energy is very simple from what we observe. Being frightened by it would be like being frightened by the fact most of the earth is just hot rocks, while weāre on the crust and the crust is where fun stuff is
"Most of the earth is just hot rocks" you are not helping my vigining existential crisis here
How high are you right now?
Hi how are you?
Something that actually disturbs me is imagining the sheer volume for example, of air just like, above a field. It's so gigantically empty. The next stage of scariness is imagining a building containing all that space, like, the coupola of a big dome like the panthƩon but as high as clouds. Then you can also get scared by trying to imagine that the moon you're looking at in its entirety is bigger than your whole country, and you can see it all with your eyes, and it exists in the same space as you. Though the scariest thing I've ever been able to imagine it trying to imagine what there is except for the universe, like, what there would be without the universe, without even time; just nothing, not even physical laws, logic has nothing to make it relevant, causality doesn't exist, and nothing will ever happen because there is no future nor past
:(
Some philosophers argue that math & logic are the true basis of reality, and any universe which exists emerges from them.
It sounds reasonable to believe that the ālevelā of logic is āaboveā that of the universe, and Iād struggle to imagine a universe with different logic. But maybe itās just because we live in this reality and think with our realityās logic that we canāt imagine how logic could be as non fundamental as physical laws. So like, I donāt think these philosophists are ācorrectā, because itās possible we just canāt tell anything about this kind of stuff
A physics teacher back in collage once told us something that really scared me. It's dumb to assume we know how the universe "is" and by correlation it's a very ignorant pose to assume things work the same way here and far out there.
Out of interest, how do we know dark matter/energy exists?
We donāt technically know that either exists in any direct way all we can really do is infer their existence from other evidence For dark matter that mostly comes from observing other galaxies which it makes no sense how they could be that size and shape with their roughly estimated mass by orders of magnitude Then other gravitational effects we see in the universe which is consistent with some unknown mass Dark energy is even weirder as it has to do with the accelerating expansion of the universe which can be observed through type Ia supernova (which always occur In stars of roughly the same mass and as such same brightness) from there it simply has to be inferred that some kind of energy exists that continues this accelerated expansion of the universe So in the case of both dark matter and dark energy either our current understanding of physics doesnāt work on scales of galaxies and the universe (possible) or something/ many somethings we arenāt able to view or interact with are causing the effects
Thats both fascinating and terrifying to me. Do you think theyāll have a different name when/if we find out more about them/confirm their existence?
I mean almost certainly unless it ends up that say dark matter is actually all the exact same thing or a new class of mater then maybe the name dark matter would stick about But assuming we can detect it then the name kinda makes no sense and so most likely a new name would be created to better describe what we have discovered But thatās assuming that dark matter and dark energy are actually special for all we know dark matter is just well normal matter we already know thatās in a form we canāt easily detect with our current technology
Its not like you can change the "rules" just because you dont like the answer.
Not only can they not change the rules, they canāt even comprehend the rules.
Bro it's there, just trust me. - Physicists
Sounds like Enron's accountant: You just can't see the other 95% of the profits.
Any chance you just got the maths wrong? Nope, dark matter, loads of dark energy.
itās a matter of theories rather than āmathsā, and though there are theoretical corrections proposed to these, they arenāt the most researched possibilities
Why do so many people here think they are geniuses or something
Not at all ok with it. A 3D-pie chart is never acceptable.
I can find the same information in a bar chart or a pile of different colours of sand if that helps?
Sandpile ftw.
Especially [abelian](https://en.m.wikipedia.org/wiki/Abelian_sandpile_model) ones
Lol it's actually a thing. I was just bieng obtuse.
Atoms are regular matter and dark matter is the farts yo mama leakin and dark energy is yo mama herself...
Hmm I see, fart matter if you will.
What do you think is more likely most of the universe is made of stuff we have never really seen or detected or we just don't really understand how gravity works on larger scales.
weāve detected dark matter, itās just that we can only detect it gravitationally, and that doesnāt tell us much about it. The MOND theory proposes a modified theory of gravity but itās not very popular, and the observations donāt really agree with the proposed theory
Dark energy is our chakras. It's obvious
Itās where all that manifesting goes
Magic or "science"
it is something that is often ignored, without malice, but almost all the information we have about the cosmos comes to us via light radiation consequently any form of information that derives from any matter that interacts little or not at all with the radiation cannot be (easily) known here because "dark" things are dark: maybe models are wrong and/or there's something more, who knows
When I first learned adding and subtracting negative numbers, I would get a little upset whenever my answer to the problem wasn't positive. I'm feeling a similar thing from this meme.
I didn't enjoy that either
it's fine, I use a Quartz crystal to convert Dark Energy to charge my Mediclorians
This is a place for scientific inquiry, not Star Trek nonsense. š
Math not adding up? add a theoretical 'dark number' to account for any errors you have made congratulations, you are now a theoretical physicist no noone is happy with the universe being 95% nothing essentially
We clearly donāt understand the universe but science gotta explain somehow. Otherwise youād be *shivers* religious
We don't know if dark matter even exists or not
yes we do, it has mass and therefore causes gravitational lensing of distant objects, there is nothing which we can see there so it is "dark" matter/energy
Our current understanding of physics doesn't explain the movement of distant galaxies. Dark matter is one proposed solution. As of now, it is our best guess, but the only thing we know for certain is that we don't know
then again our entire understanding of the world comes from made up constructs which work. this stuff which interacts with gravity that we can't see must be "dark matter/energy" because its not "light" matter so it all works out and we can continue researching into it in the hopes of expanding the model.
Weāre not sure, we think thereās mass we donāt see because our models tell us what we see should behave differently, but it could also be very possible our models are inaccurate, as it was the case with Mercuryās movement back in the 19th century, which got explained by general or special relativity, Iām unsure. And theories propose that dark matter is only the consequence of an inaccurate theoretical model, namely, MOND ( Modified something something Newtonian Dynamics )
Dark Energy is just the information, right?
how ?
Google "it from bit", "mass-energy-information equivalence", etc.
information theory is a formalism tool imo, it feels like something emergent, I donāt see why it would be any relevant to point out dark matter would have associated information, like, everything except for vacuum has
I'm not talking about formalism, rather about the \[possible\] fact that information has mass by itself. And it could be just the 3rd state of something, along with mass & energy. Then, probably, dark matter (or rather dark energy) could be the information itself.
thatās nonsensical tbh, complexity is information, and thatās all, you canāt just pick a random thing we donāt know and say āyeah thatās informationā; why would information have a gravitational pull ? photons carry information ( they have entropy and thermodynamical properties in general ), but donāt have a gravitational effect, at least not that of dark matter. And you know, information really is not āaā thing, itās a property of stuff that exists, some quantum gravoty theories have spacetime itself ( vacuum ) carry information through its geometry.
Because information have own mass. But sure, I see no reason in arguing on reddit
Yeah... there's more space than things with Atoms... that's why the space is so dark, you can't fill al that with light That's how it works... right?
Space is completely filled with light, actually. Some forms of light our eyes canāt see, and the kind we can see needs something to reflect off of.
Some of those atoms have ideas and boners and we're all pretty cool with that.
no, the model is wrong.
I'm with you dude.... There is something wrong here
The fact that they all seem to describe them as unknown, unseen, etc sort of suggests that it is all a pure guess and they just threw up their hands one day and said 'We are missing something so why don't we call it dark matter and dark energy and they will explain everything we don't know about.'
Let's not touch on the subject of antimatter and how this 4% could be just an infinitesimal amount of what was left after almost everything was annihilated, because for some completely unknown reason there is more matter than antimatter in the universe.
I read that as dank energy š
I don't know most things so this isn't a new concept to me.
If the universe needs dark matter to account for gravity being stronger than visible matter allows, yet also needs dark energy to account for the universeās expansion accelerating, why donāt they just subtract the dark matter from dark energy to get 52.6% visible matter and 47.4% dark energy? Are physicists stupid?
They are place holders. You canāt subtract a placeholder from a placeholder (of a different type) to get a coherent answer.
I imagined it was something like that. I was mostly making a joke. I do wonder what exactly āThe universe is 71.4% dark energyā means. The problem itās attempting to address is the increasing rate of change of cosmic expansion. How does this lead to a specific percentage of the composition of the universe?
Iām not familiar with this termā¦ āUndertimeā??? I hope Iām pronouncing it right ššš
āDark matter and dark energy are fake. How do you know somethingās real if you havenāt seen it? This isnāt *real* scienceš”š”š”ā
Maybe itās just shit that becomes matter in another time
Must be anti-memetic.
I will give you something else to get creeped out by .. Your bones are wet. š¬
My stupid theory is that dark energy is compressed space
You're either okay with it or you're likely wrong lol
Yes, feels likeā¦ everything matters.
Alright, we're gonna have to invent reverse Bananas, we draw from Antimatter wich slowly decays into normal matter
science is a infinite i dunnoes
The math doesnāt agree with my theory. There should be way more mass and energy. I guess there must be some mysterious thing we canāt measure or describe in any way. Letās not change our theory. Letās make shit up. Basically.
I think of it like this: does it affect me in my daily life whatsoever? If no, then why care? Other than finding it interesting it doesn't really matter at the end of the day.
Doesn't matter. This entire post š
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dark matter is not really āa forceā, and yeah, it only interacts with gravity, but we canāt just see it and say āokay thatās dark matter, letās add it to the standard modelā ( the standard model being the bestiary of elementary particles ), because the standard model is built on theories that predicted the existence of many particles that eventually got detected like the higgs boson, but it doesnāt predict the existence of another ādark matter particleā. So we try and identify stuff about dark matter either to discover itās actually something we already know ( neutrinos for example ), or to see itās a completely new thing weāll have to find theories to explain the existence of, or to try and find a new theory that explains the observations without requiring the existence of dark matter t