How can they be so sure?

Question

I have heard of the big bang theory hundereds of times, and it starts out that there was nothing. NOTHING at all in the universe at that times, so how did a speck of everything in the univers just suddenly appear. and if it was everything in the universe, it would be super dense and by how scientists say black holes are formed, that little speck of everything would become a super super super super super super super super super masive black hole. now go ahead and tell me that i am stupid if u think that. but by the way scientists describe things, especially the formation of black holes, and the formation of the universe, that little speck would turn into a black hole. so i think that they are wrong about the big bang theory.

what i am trying ot say, also is that they believe their theories, but if somebody brings up another theory they scrutenize ti and ake that person feel like an idiot. they try to make every person believe whatever they say.

i have also watched many shows on the big bang theory, adn they all say that there was nothing here before the big bang, so if there was nothing at all, not even a speck of dust, how did that little tiny smaller than an atom, appear, with everything in the universe? if you watch tv, the science channel, they will talk about how there was nothing, and then all of a sudden there was something. that is kind of going into parallel universes.

watch the shows on tv about the new theories, and they will tell you that there was nothing, nothing at all before the big bang.

Answer 1

well noone can ever truley PROVE how everything came to be its meerly a theory. sometimes you just have to pick your theory or religion you belive in and go from there. no science without religion. and if everything had to come from somewhere your always gonna find something that was just there. just like the chicken and the egg theory well the chicken had to come first becuase other wise thred be no egg but then how did the chicken get there???

Answer 2

The exact same theory that describes the behavior of black holes (general relativity) is the one that describes the Big Bang. This theory essentially says that there was no 'before the Big Bang'. It is only possible to talk about *after* the Big Bang because time itself started then. Remember that time and space are linked in relativity and that gravity is described by a warping of spacetime. The high density of the early universe was enough to warp time to the place that it doesn't go back before the start of the expansion.

The main difference between a black hole and the beginning of the universe is that the universe is close to homogeneous. It was not just one little thing that blew up. That is a fiction that TV shows use to get some of the ideas across. The universe was, even then, essentially the same everywhere. It was just very dense and hot. It may very well be that it was infinite although that is not established. But that the part that expanded into the part of the universe that we see now was a very small piece of the whole and was very small in size at that time.

A black hole, on the other hand, is a singularity in spacetime. There is a vacuum around it and that affects the solutions to the equations in general relativity. There was not such a vacuum around the 'universe' at the start. Also, black holes (at least according to the basic equations governing them) do not evolve in time the way that the universe as a whole does. By assuming that the solutions are static for the black holes, we get very different behavior out.

Answer 3

I do not know the answer, no one does, but I have thought about this a lot.

I try to think about this. It is hard to imagine, but you have to think about what it means when there is no time and there is no space -- there is no universe. If space does not exist, you cannot measure the size of that "tiny little speck". Maybe this is what conditions are like in a black hole, no concept of space or time.

I'm kind of with you, I like the idea that the universe started as a "black hole" and then the big bang happened for some unknown reason, maybe it is similar to a supernova. Then as the universe expands and everything slows down it will collapse on itself, and condense back into a "black hole" and the cycle will start again. As for what is outside of this "black hole", that makes my head spin.

The reason I put "black hole" in quotes is that it doesn't make sense to talk about a black hole that does not exist in space-time.

Answer 4

cuddle_bug has a point. It's all theories, and nothing has been proved. But as far as chicken/egg relationship, it wasn't the chicken first, it was the egg. Remember that Earth animals have gone through a process called evolution, so it's very likely that some sort of prehistoric animal crossed with another prehistoric animal, and later had an egg. From the egg came out the chicken...

There is one thing you have to note. Big Bang theory states that before the big bang THERE WAS very dense and hot matter located at a single point. So stating that there was nothing before the universe is a mistake.

Also, the difference with black holes, and wahtever singularity there was before the big bang, is that black holes are inside the universe, and do not contain as much mass as the universe's singularity did.

Answer 5

It's one of the more difficult things to wrap your brain around. In math class you've undoubtedly been introduced to the number line, a line that has 0 in the middle and has 1,2,3,4... to the right and -1,-2,-3... to the left. All children ask when it stops and the answer is it doesn't, it goes on forever. The same thing for the plane. It's just two number lines placed perpendicular to one another.

Before the big bang there was no space. No number lines counting off into the distance. It is truly difficult to grasp this concept. At the moment of the big bang space was created. Poof, we have number lines now and they go on forever. Moreover we have 3 dimensional infinite space. Then comes expansion. Another difficult mental hurdle.

We go from no space, to infinite space in a blink, then space starts to 'expand'. How can something that is infinitely large expand? Well it doesn't get bigger because it's already infinite, the distance between things gets bigger. Think of the early number line as being made of super elastic rubber. Ever since the big bang the number line has been stretching. So the 1 and the 2 used to be very close to one another but now they are very far apart. The 10 is 10 times as far seems to be moving ten times as fast from 1's perspective

Answer 6

There is direct evidence for the event which has come to be known as The Big Bang. Two guys named Penzias and Wilson won the Nobel Prize for it back in the sixties. It also explains the fact that the universe is expanding, something we have known since the 1920s. (X-ref Edwin Hubble) Speculating on what was here before the universe happened belongs in the realm of metaphysics and philosophy. Just because something seems illogical to you is no good reason to go start believing in God and 'intelligent design', that stuff is just a load of crap people believe in to make themselves feel better about their limited existence. Don't fall into the trap like so many others have! Pure science is mankind's only hope for lasting existence.

Answer 7

Scientists are more and more realizing today that nothing could exist without an intelligent creator.

Find the book "Darwins Black Box", which the scientific community tried to suppress because it broke the mainstream "Beliefs and theories" that they think are factual.

The earth was created people, everything was intelligently designed to work as it is supposed to. Tough to believe but a big bang just doesnt explain anything. In this random universe, we humans just evolved from a primordial soup?

Why are we the only living things in the universe, on the only habitable planet, perfectly distanced from the sun, moon and other planets, getting just the right amount of sunlight, etc.. etc..

If the big bang theory was right, we wouldnt exist, our ball of dirt would resemble one of all the other lifeless scarred planets out there.

Answer 8

Your question is posed incorrectly. You are assuming that the universe somehow exists inside of static space, this is incorrect. Going backwards in time space itself gets smaller but there is never anything "outside" of it. If one considers space to be infinite now (a fair statement) then it was also infinite at the time of the big bang (just much hotter). Physics also never presupposes a state prior to the big bang (that would be philosophy). I think that this question just falls into the errors that occur when giving rough explanations to laypersons.

Answer 9

That's the misconception. Everyone thinks of all the mass in a tiny object. The current thinking is that two things called branes or membranes collided and energy was released and the universe expanded. Much later that energy fell out as matter.

Answer 10

the universe exists at the nexus of mutually exclusive realities. The universe is completely constant in its state of constant change. It is both becoming more complex and more simple, it disintegrates as it creates itself. It exists because it cannot not exist. The universe creates time, and is bound by time. The universe has not choice but to exist.

You are trying to put a human perspective. Just becaue we don't 'understand' something doesn't mean it isn't real.