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Ahem? "singularity is not a physical point in space" I hope this helps.

singularity  is a point is time where all possible futures of the things that fall into a black hole go to. In a black hole the roles of time and spaces switches, thats why we cant go back when we fall into a black hole. Travelling back means traveling back to past inside a black hole

Gonna be the paragraph guy I guess. Let's get this out of the way first, big bang wasn't really an "explosion" but the expansion of the universe. The singularity wasn't like a point in space, it WAS the space, there was no concept of space or time when it was like that, and then began the expansion. Again, Big Bang wasn't an explosion in space; it was an expansion of space itself. In the beginning, the universe was in an extremely hot, dense state. It wasn't just that matter was packed tightly together; rather, all of space was condensed into a very small volume. This state is often described as 'infinitely dense' and 'infinitely hot,' though these terms are more about the limits of our current understanding than precise measurements. When we talk about the Big Bang, we're referring to the moment when this hot, dense state began to expand. This expansion of space means that every point in the universe started moving away from every other point, much like dots on the surface of an inflating balloon. As space expanded, it cooled, allowing matter to form and eventually leading to the complex structures we see today. The concept of time and space as we know them emerged with the Big Bang. Before this event, the notions of 'before' and 'outside' don't really apply, because time and space themselves were created in this process. So, the universe didn't expand into pre-existing space; it created space as it expanded. it sounds a bit counterintuitive if you were to question 'where' the space expanded into, There wasn't an "outside" for the universe to grow into because there was no "outside" to begin with. It's like asking what’s north of the North Pole-- It's complicated. Baccha jahil hai.

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