/sci/ - Science & Math

>>12079869
If there are infinite stars then the sky is dark if there's empty space between them. The space is a larger infinity

>>12079869
>Has anyone ever thought about this?
https://en.wikipedia.org/wiki/Olbers'_paradox
open wide for the airplane!

>>12079872
That sounds like something a retard would say. There's no such thing as a "larger infinity". Grow a brain

>>12079869
It's just a problem of finding the ratio of two infinities like zeno's paradox. Starlight disperses faster than it can reach us.

>>12079877
Like the measure of primes compared to the natural numbers is 0.

>>12079875
>Blah blah blah redshift redshift redshift
Oh yeah, so some inexplicable magic force that nobody has ever seen or recorded and is scientifically inconpatible with General Theory is the "proof" for this dumb "theory"
Literally nobody can prove the universe isn't finite, I'm just using common sense

>>12079883
Do you know calculus? You could prove the sky is dark if there's space between the stars. Just calculate the brightness of light reaching a point if stars are equidistant and take the limit for infinite stars

>>12079880
>>12079881
>>12079889
>Trying to sound smart but having no common sense

>>12079895
>autists have common sense

>>12079877
All the numbers between 0 and 1 literally make up a larger set than all countable integers.

Its you who needs to grow a brain.

>>12079899
What the fuck are you talking about? There is literally only 1 between 1 and 2. Did you forget how to count to 2???
You cant count to infinity, but it's a healuva bigger number than fucking 1, genius

OP I heard a literal astrophysics professor on a podcast use your argument against universe infinity once

>>12079907
Get back at me when you get past pre-school and learn about Real number set.
That should be in about 12 years... See ya.

>>12079913
what does the op even mean?

op is a retard, and also didnt take the expansion of space into account, or planets n asteroids blocking light, and huge distances in space which result in us receiving maybe 1 photon from a star if far enough, etc

>>12079920
original poster, next time just google it, newfag.

>>12079877
LMAO yes there is such a thing as larger infinity

>>12079932
Ok schizo, justify how something could be bigger than "infinitely big"
>IB4 timecube esque gibberish "theories"

>>12079883
Redshift is observed you retard, literally almost every other galaxy is redshifted. Nor is it incompatible with GR.

>>12079895
>I don’t need math I have common sense.
>evidence is jewish propaganda, just use common sense.
>physics is all made up. What? no I won’t do this simple experiment in my backyard I know it won’t work from COMMON SENSE.

>>12079976
is there other evidence besides redshift for an expanding universe?

>>12080008
The cosmic microwave background was a huge confirmation. Beyond that there are a few other tests, such as the surface brightness test, the CMB temperature evolution and time dilation in supernovae.

>>12079932
Holy retard

>>12080071
thanks

>>12079869
universe isnt infinite you dumb ass american

>>12079869
Because of distances

>>12080232
how would you know?
Cosmic inflation actually predicts an infinite universe.

>>12079869
Your question reminds me of the neo-communists that were seen several times in canadian campus and forums, your image of a utopia rivals that of neo-nazis. This is why this board is flawed, your ideas of communism in a zionistic world are so childish.

>>12080239
>Cosmic inflation actually predicts an infinite universe.
no

>>12079932
You don't know what you're talkking about, lol.

>>12080244
>no
yes

>>12079964
There is no way to list the real numbers in bijection with the natural numbers, so the set of real numbers is larger than the set of natural numbers even though both are infinite.

>>12080254
1 -> 0.1
2 -> 0.2
...
10 -> 0.01
11 -> 0.02
...
18 -> 0.09
19 -> 0.11
...
this should get every real number between 0 and 1, no?

>>12080281
And you get to 1/9 precisely when?

>>12080287
when you are done counting to infinity.
How is that relevant?

>>12080296
You stop when you reach infinity? Will 1/9 appear exactly then, or at some point before?

>>12079869
Actually the sky IS lit up, all around us. Pic related is just a shitty stack of 70 pictures, 40 seconds exposition each. Taken with a Newton 254 f4.7 telescope and a Nikon D7100 camera.

The photons are all out there, it's just that our shitty eyes can't see them, our retinas don't accumulate them and only see in real time therefore our brains can't perceive them.

But the sky is completely lit up.

>>12080281
I could be wrong, but you only get the computable reals doing that.
Uncomputable reals, despite never being able to be computed with computable reals, are infinitely more many than them.

>>12079869
Something to do with red shifting, right? By the time all that far-away light reaches us, it's been stretched into wavelengths far too long for us to perceive as light. Basically what happens with Cosmic Microwave Background yeah?

>>12079895
>plugging your ears the argument
what makes you so sure about your "common" sense?

>>12079929
No you idiot. What is the op even trying to say I can't understand him

>>12079869
>If the universe is infinite
Who the fuck ever said the universe is infinite?
Most people in this thread will assume you're talking about infinite space, which is a topic of debate as to whether the universe is open or closed. However.....

>how come the sky isn't lit up like the surface of the sun
You question is not about infinite space. What your question implies would require infinite mass/energy in the universe. If there were either infinite energy OR infinite mass ANYWHERE in the known universe then the entire universe would collapse under the infinite gravity generated by this infinite energy/mass.

In short, any universe with infinite energy/mass simply can't exist for any length of time. Infinite space however, is still plausible, but again, infinite space has nothing to do with your original question.