Sunil

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We are used to thinking of Universe but not multiverse (many universes). Can we see the other universe through black hole ?

Correct, 2D can be fit within 3D but not vice-versa.

Black hole does not lead to singularity since it is made up of physical object ( Stars). It can be compressed to a atom but cannot be out of existence.

Space existed before Big Bang and time introduced after BB. At a moment, it makes sense but does it really? Basically I have two question based on each other-- 1. Is space inside of Object (universe) ? 2. Is Object inside Space ? Lest take an example - a watch inside a box(there is apace between watch and box). Box inside a room (there a space between box and room)............ watch --> space --> box --> space --> room --> space ----????? --> universe end ? * so, is the edge of universe is space or made of an Object which surrounds the universe. Most probably end of universe is nothing since there is a many (infinite) ends of universe like center of universe. In my case the watch was centered but in next case a fan could be center. So we do not have a center or origin point of universe then how could we have end. * It could be the case that universe starts with watch kept in left hand of yours and and ends at fan just above of your head.

Depth of spacetime fabric is not fixed. It depends on the size of black hole. Well till now we know the one part of black hole is our universe (top of the above image) the next part could be the door of another universe( bottom of Image, yet to be discovered).