How are we not just in a black hole right now?
Because black holes are actually white holes.
>>16952720https://files.catbox.moe/v3zf80.pdf
>>16952687if so, where is the singularity?
>>16952687The mass is spread out like a gaping anus that gaped too wide. A black hole can have any mass as long as it's packed densely enough.
>>16952687Est. mass of universe - 10e54 kgEst. Schwarzschild radius of universe - 7.8 lyEst. comoving radius of universe - 4.7E10 lyThat's why we're not a black hole right now
>>16952921Yup, OP is an idiot. The better question is how come the universe didn't collapse into a black hole when it was younger and much, much smaller.
>>16952934what if it collapsed and we are inside it now
>>16953076Nothing changes. It would have to be one strange blackhole, especially since every astronomical observation ever made lines up with us not being inside a blackhole.
>>16952921>>16952934>Est. Schwarzschild radius of universe - 7.8 lyNo? Where the fuck did you get this? It's 2GM/c^2.2(6.674e-11)(10^54) = 1.3348e44 / (2.998e8)^2 = 1.4850906e27m = 156974200280 lyThat's ~1.57e11 ly. Which is bigger than 4.7e10 ly.
>>16953100>every astronomical observation ever made lines up with us not being inside a blackholedo we really know how astronomical observations work behind a black hole's event horizon though?
>>16953156If we didn't then GR would no longer work and all the observations wouldn't match what we would expect.
>>16953165they don't
A black hole is a solution to the Einstein field equation. Its not just a function of mass and density. That mass has to uniformly distributed in a sphere with nothing outside to satisfy the black hole solution assumptions.
>>16952934Because its was that dense everywhere. Every point would have equal claim to be the singularity
>>16953156Yes. The solution that tells you blackholes exists tell you the metric inside the black hole. And its not the FLWR metric.
>>16953217>That mass has to uniformly distributed in a sphere with nothing outside to satisfy the black hole solution assumptions.No it doesn't.
>>16952687Universe is inside a black hole. It just doesn't really have any effect on us from our perspective.
>>16952820Why didn't it collapse into one giant black hole when Universe was densely packed?
>>16953267Because space itself was also jammed in there. Anselm's ontological God created the universe, not Euclid
>>16953237Yes it does. The Schwatzchild solution describes spherically symmetrical mass, vacuum outside the black hole, and a cosmological constant of zero.
>>16953267Because that isn't what the Einsteins field equations do for a uniformly distributed mass.
>>16953494Einstein fucked his cousin
>>16953493The Schwarzschild exterior is only a function of total mass and doesn't care how that mass is distributed internally, that's literally whole point. You don't need uniform density, you don't need a sphere of mass, the exterior metric is the same regardless of what the interior looks like. This has nothing to do with the interior of a black hole in the first place. Dumbass spherical cow retard.
>>16955179t. Retard.The total mass doesn't even appear in the Einstein field equation. Its the mass distribution. And Schwartchild describes a radially symmetric mass surrounded by vaccum with zero cosmological constant.
>>16952818All directions in spacetime lead to the singularity.
>>16952687We are. >>16952720That is correct. It shows up as a white hole surrounded by black matter or energy. >>16952934We collapsed into a black hole around the year 2005.
>>16958620Only if spacetime is highly curved.Observations show that the curvature of the geometry of the universe averages to zero on large scales.
>>16952687To prove that you don't really understand what you're even asking, here's a question for you to answerWhat would be the difference if the universe was not just a black hole? What do you think would change, one way or the other?
>>16958828What is the singularity? Death?
Test
>>16952687The universe started out as a singularity, how is it proposed it state changed?
>>16953165>>16953222Nothing you can't actually observe is known, only inferred.
>>16952687>If the universe has enough mass and density>IfThe condition in your equation does not evaluate to true.
>>16952687Black holes are end-game information processors. By embedding computational nodes within the hyperbolic geometry of a black hole, the mathematical distance between nodes approaches zero. If you were able to copy your consciousness into such a computer, your "mind" would be a near-infinite sandbox to shape to your whims, you would never feel friction or entropy, and your compute ability would be so powerful that you could perfectly simulate, at the very least, your local galactic cluster by passively processing data that reaches your passive sensors at the black hole.
>>16960890You don't understand. Black Holes aren't an object. They ARE a spacetime metric. And that metric simply doesn't match our observable universe metric.
>>16961359>spacetimeKEK
>>16952687Why wasn't it just immediately a black hole?
>>16952687anon... any mass is enough to create an event horizon...>>16952720fuck off, racist
>>16952687I don't understand this image.
>>16953165>and all the observations wouldn't match what we would expectthey made up dark matter and dark energy precisely because they don’t match with GR
>>16963196that's good for you
>>16952687Mass and density aren’t enough just by by themselves create a black hole, there also have to be other conditions for a black hole such as the gravitational collapse of a star and an apparent horizon
