This was also not accepted in the beginning and was therefore sarcastically called “Big Bang”. This happened about 13.5 billion years ago. It is so incomprehensible and difficult to accept because from there the whole universe would have originated. Everything that comprises the universe was concentrated in one point. They call this the singularity. I still find this incomprehensible. How could that huge mass of trillions of solar systems, black holes, quasars, neutron stars ever have been in one place smaller than a pea? I think this is an almost religious idea and it was also invented by a Catholic priest, one Georges Lemaitre. Very hard to accept despite all the “evidence” of this.

 

The only way I can possibly imagine this is that this took place from another dimension, and then it remains incomprehensible. A kind of transition process of matter from one dimension to another.