[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math


View post   

File: 24 KB, 450x250, infinity.png [View same] [iqdb] [saucenao] [google]
6931796 No.6931796 [Reply] [Original]

Is there anything in the physical world that is infinite?

>> No.6931799

>>6931796

my love for you

>> No.6931801

my intelligence

>> No.6931802

-1/12

>> No.6931805

time

>> No.6931807

>>6931796
the amount of times ur mumz ben fuggd

>> No.6931809

the number of non unique apples i can fit in an apple

>> No.6931811

the amount of dicks OP sucked

>> No.6931812

my dick size, in inches

>> No.6931817

OP's virginity

>> No.6931819

>>6931805
how can there be time if there is nothing?

>> No.6931827

>>6931796
video-games? Infinite bullets and lives? Can't think of anything else

>> No.6931832

>>6931799
>>6931801
>>6931802
>>6931805
>>6931807
>>6931809
>>6931811
>>6931812
>>6931817
>>6931819
>>6931827

tl;dr

infinity does not exist

it is an illusion to allow us to rationalize large numbers

>> No.6931894

>>6931832
your gayness is infinite

>> No.6931897

>>6931796
> Is there anything in the physical world that is infinite?
No. That's why the concept in itself is bullshit.

>> No.6931898
File: 340 KB, 1920x1080, 2001-a-space-odyssey-original.jpg [View same] [iqdb] [saucenao] [google]
6931898

>>6931897
>No. That's why the concept in itself is bullshit.

>> No.6931904

The universe is infinitely large

>> No.6931912

>>6931897
Are there any perfect circles in reality?

>> No.6931913

>>6931796
Seeing as anything physical, being in the physical world and all, is basically made out of energy. So if there is at least one thing infinite, then it's energy. Seeing as the total amount of energy in the universe is about 0, nothing actually exists. Happy existential crisis

>> No.6931915

>>6931904
bullshit. a theory is a theory. we claim it is infinite because we can't see the end

infinity cannot exist

>> No.6931917

>>6931904
Wrong

>> No.6931919

>>6931915
Numbers don't exist, they're just concepts. Deal with it.

>> No.6931920

>>6931912
>Are there any perfect circles in reality?
No. Of course not. But a perfect circle and infinity are two completely different things with different implications.

https://edge.org/response-detail/25344

>> No.6931925

>>6931917
Am not

>> No.6931927

Sets.

>> No.6931928

Your choices at any instance. Maybe.

>> No.6931929

>>6931912
The charge distribution of an electron seems to be perfectly spherical.

>> No.6931931

>>6931920
OK, but according to your logic circles are bullshit and we can't do math with circles because "they aren't real". Dismissing infinity simply because you don't like the implications is stupid.

>> No.6931935

>>6931929
So the charge is distributed over an infinite amount of points?

>> No.6931939

>>6931796
Density of a black hole.

/thread

>> No.6931940

>>6931935
I don't see how you could come to that conclusion.

>> No.6931945

>>6931939
>he thinks black holes are real

KEK

>> No.6931948

>>6931940
A circle is an infinite amount of points in a plane equidistant from the origin.

>> No.6931953
File: 39 KB, 562x437, Ohwow.jpg [View same] [iqdb] [saucenao] [google]
6931953

>>6931945
>he thinks black holes are fake

>> No.6931958

Amount of information in the universe.

>> No.6931966
File: 22 KB, 400x400, wrong.jpg [View same] [iqdb] [saucenao] [google]
6931966

>>6931939

>> No.6931968

>>6931931
Dude, EVERY abstract concept is not real. We just use language to combine abstract things with real things, but that doesn't make the abstract things real. If I say "The earth is a sphere" that doesn't imply that the real object (the earth) is in fact equal to the abstract object (a sphere). Also if I say "There are four cakes left" doesn't imply that the number "four" is real. Those are just powerful and useful approximations of reality. It's really fundamental.

>> No.6931969

>>6931966
Brah, that's my point. Math is about abstract concepts and does not need to reflect physical objects.

>> No.6931972

>>6931966
What is the density of a black hole?

>> No.6931973

>>6931968
How can an abstraction be real if a concept isnt real?

>> No.6931976

>>6931973
How can concepts be real if our eyes aren't real?

>> No.6931979

>>6931973
Jayden pls

>> No.6931983

post yfw you realize that everything is made of atoms, and therefore we are groups of atoms studying atoms

>> No.6931987
File: 17 KB, 263x263, happysium.jpg [View same] [iqdb] [saucenao] [google]
6931987

>>6931983

>> No.6931991

>>6931796
the singularity inside a black hole is supposed to have infinite density.

>> No.6931995

>>6931935
i would say so, yes.

>> No.6932009

What about the calculation for the Casimir Effect?

>> No.6932032

>>6931796
Entropy

>> No.6932039 [DELETED] 

[code]
dasdfsdf\nasd
[\code]

>> No.6932045


dasdfsdf\nasd

>> No.6932050

>>6931968
Pro tip: there is no clear distinction between the concrete and the abstract. The concepts of "reality" and "abstraction" break down under scrutiny.

This is why I'm a philosophically a nihilist, but for practical purposes we sweep all that shit under the rug and act on empiricism and materialism.

>> No.6932085

The density of a black hole

The length of the path that a circular object travels if it continues for infinite time

>> No.6932089

>>6932085
i mean object moving in a circular path. whatever.

>> No.6932400

>>6932089
how can something move for an infinite amount of time without stopping?
how can something move for infinite time if time isn't infinite?

>> No.6932405

>>6931832
lold hard

>> No.6932409

>>6931948
no, that's a circumference

>> No.6932413

>>6932409
Isn't <span class="math"> S^1 [/spoiler] or <span class="math"> S^2 [/spoiler] actually defined using infinity

>> No.6932414

>>6931796
a circle has infinite sides

>> No.6932419

>>6932413
Yes. But this is in an abstract representation of the universe.

Real universe is discrete when you look at very small scales, you will always encounter a value which is the smalles possible value, and nothing can be in between two values of this, that's why planck units exist, they limit the continuous way of the universe into many many discrete values.

like electrical charge, values can increase 1 electron at the time, or if you want to look at it that way, 1/3 of electron at the time

>> No.6932443

We live in a universe where energy can neither be created nor destroyed..enjoy

>> No.6932486

Xeno's Paradox
Xeno's Paradox
Xeno's Paradox


we experience infinity in everything

>> No.6932488

Systems. Godel's incompleteness theorem.

>> No.6932634

>>6931796
> Is there anything in the physical world that is infinite?

This is not known, and it can't be known. How can you measure a physical infinity? You'd need infinite time to determine that. Or an infinite measurer. Either way, you'd need an infinity to determine an infinity, so it becomes an unknown... merely a presumed tautology.

>> No.6932780

The universe is infinitely small.

>> No.6932786

>>6931953
>implying hawking hasn't already proved black holes don't exist

>> No.6932797

>>6932786
See >>6931953

>> No.6932828

>>6932414
>implying there is such thing as a perfect circle

>> No.6932830

>>6931796
Loved that part in Jojo
It was so bullshit but clever at the same time

>> No.6932883

>>6931796
>anything in dat would dat infinite.
Sure.
A standard ruler has an infinite amount of points along it measuring edge.
My kitch table could be sub devided to stretch out over an infinite length.

Infinity is all-around you kiddy.

>> No.6933003

The 10th dimension

>> No.6933030

>>6931796
>Is there anything in the physical world that is infinite?

Electron self-energy in electrodynamics

>> No.6933032

>>6932828
Doesn't have to be perfect.

>> No.6933049

>>6931796
the ignorance of a Wild Hamburger

>> No.6933051

>>6931796
The density of a black hole is infinite.

>> No.6933058

>>6933051
If there was am point inside black hole where thedensity is infinite, that would mean the mass inside is infinite, that would mean the gravitation pull is also infinite and since gravitation pull gets weaker with ^2 of how far away you are, gravitation pull everywhere else in the universe is now infinite and we are dead. So no it is not.

>> No.6933070

>>6933058
so much fail.

finite mass, zero volume. its a divide by zero problem, not an infinite mass problem. the gravitational pull goes towards infiinity before it becomes undefined.

>> No.6933072

>>6933051
I have never understood this, if I am not wrong it is entirely possible to have a black hole as long as it is smaller than its schwarzschild radius which would not be infinite.
So why does it need to be infinite?

>> No.6933079

>>6933072
any mass that becomes a black hole has a singularity at its center, meaning a finite mass occupying zero volume. the mass concentration at a point means that spacetime has infinite curvature: unlike on a planet of equal mass where gravity stops rising when you enter the solid, gravity just keeps increasing towards infinity as you approach the singularity. there is no surface to stop your approach, remember.

any mass that occupies a singularity in spacetime will have a schwarzschild radius, or the point in space at which light cannot escape. it is therefore meaningless to talk of blackholes being somehow larger than their schwarzchild radius.

>> No.6933085

>>6933079
cont'd.

in other words, it is neither the mass, nor the radius, of the black hole which is infinite. it is the curvature of spacetime (ie gravity) as you approach the singularity. this curvature is only 'infinite' at the center. i put infinite in quotes, because technically spacetime only approaches infinite curvature asymptotically before becoming undefined. the distinction, however, is rather technical and perhaps a matter of semantics as it pertains to OPs question.

for all intents and purposes, that is what infinite space time curvature looks like in our universe.

>> No.6933090

>>6933085
cont'd.

It is interesting however, to consider the quantization of spacetime itself: does such a quantization exist? If, for example, the plank length were to represent the smallest meaningful distance (this has yet to be shown convincingly), then there would be a real upperbound to spacetime curvature before it became undefined.

>> No.6933105

>>6933079
And how do we know that the mass inside a black hole occupy a 0 volume?
I don't believe that.

>> No.6933110
File: 595 KB, 1024x768, b332.jpg [View same] [iqdb] [saucenao] [google]
6933110

NICE TRY WILDBERGER

>> No.6933445

>>6931796

Human stupidity

>> No.6933609

>>6931799
>my love for you
/thread

>> No.6933613

>>6931832
its a mathematical concept, thats all now go sleep

>> No.6933616

maybe