- #1
Tio Barnabe
There are two kind of singularities which are familiar in General Relativity. One of them is the singularity of Black Holes and the other is at the beggining of the universe.
I'm confortable with the former singularity --it seems to make sense. But as with the latter, I'm not so confortable, because I'm going through the following reasoning:
1 - A singularity in General Relativity as far as I know happens when you have enough matter in a region small enough.
2 - Then, talking about a singularity at the moment of the Big Bang is equivalent to saying that there was a plenty of matter together in a small region. This seems to assume that the current galaxies have been existing in the way they are today since the Big Bang, and that at the moment of the Big Bang they were in some sense pilled up. My disconfort comes from the fact that there was no matter at all to form galaxies at the moment of the Big Bang.
My conclusion is then that in this reasoning, we should assume that galaxies have been always existing in the way they are today, with the difference that today they are more far away from each other than they were in the past. Correct?
I'm confortable with the former singularity --it seems to make sense. But as with the latter, I'm not so confortable, because I'm going through the following reasoning:
1 - A singularity in General Relativity as far as I know happens when you have enough matter in a region small enough.
2 - Then, talking about a singularity at the moment of the Big Bang is equivalent to saying that there was a plenty of matter together in a small region. This seems to assume that the current galaxies have been existing in the way they are today since the Big Bang, and that at the moment of the Big Bang they were in some sense pilled up. My disconfort comes from the fact that there was no matter at all to form galaxies at the moment of the Big Bang.
My conclusion is then that in this reasoning, we should assume that galaxies have been always existing in the way they are today, with the difference that today they are more far away from each other than they were in the past. Correct?