The universe. It starts where and ends where. Basically it has no beginning or end. Does it fold onto itself?
The big bang has a huge amount of something blown apart because of something and stretched out into the cosmos.
Okay if you buy that where did this huge amount of something come from? What caused it to bang? We know it is still expanding but to where? Are all areas expanding at the same rate?
Just a few questions with no answers. Juggling this in my mind gives me a headache of universal proportions.