What would happen if the space time continum was destroyed at the seams?

Answer 1

It is certainly possible for the universe to be so dense that gravity would be strong enough to make it re-collapse. In this case we would observe blue shifts instead of red shifts as all the galaxies ran back together. They would collide, and the universe would become progressively hotter and denser. In the last minutes, even super-dense objects like white dwarfs and neutron stars would begin to evaporate. Ultimately, the fate of such a universe would seem inevitably to lead to a Big Crunch where all matter is jammed together in one cosmic black hole. But who really knows? There has been speculation that after such a Big Crunch there could be a new Big Bang, so that the universe might regenerate in cycles like the legendary Pheonix. I find that a nice thought, but a big crunch does not loom soon in our future, if it'll ever happen at all: it won't if our current measurement and understanding of the acceleration is correct. This universe will expand forever, becoming ever sparser than it already is.

Answer 2

Probably nothing. Quasars are similar to normal galaxies except they have a massive black hole at the centre. Galaxies do collide or merge without any significant effect.

In all probability, the smaller of the two would probably just merge with the larger one.

Answer 3

If the spacetime continuum was destroyed at the seams, it could potentially lead to the unraveling of the fabric of reality itself. This would likely result in a catastrophic breakdown of the laws of physics as we know them, creating a truly chaotic and unpredictable universe. It is something purely hypothetical and not based on any scientific principles.

Answer 4

by definition two things that are parallel cannot collide.