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As we know for general relativity theory we live in a universe with (at
least) 4 dimensions, 3 directions and time. If we think that time must be
in 90° with other dimensions we can imagine the universe as a hypersphere
with time as radius. Make it easier and simpler and cut one dimension (not
time) and we have a universe that is an expanding sphere. (all we can see
is in the surface of the sphere).
This view can lead to a bunch of conclusions, some interesting, some wierd:
1) First of all, time passes because of universe expansion. If axpansions
cease then time stops.
2) If the sphere is not perfect, the time since born of the universe could
be not the same in different parts of the universe.
3) In the case of a big crunch, there must be and end in a singularity,
because no matter the shape of the universe, when a region reach the center
of the sphere time stops for that region.
4) There is no sense to talk about "rapid" or "slow" expansion of the
universe because point 1.
5) It is fun to think about different possibilities of deformations in the
sphere surface that leads to extrange phenomena in time and space behavior.
Sorry about my english, I am not native english speaker.
What do you think?
Regards
least) 4 dimensions, 3 directions and time. If we think that time must be
in 90° with other dimensions we can imagine the universe as a hypersphere
with time as radius. Make it easier and simpler and cut one dimension (not
time) and we have a universe that is an expanding sphere. (all we can see
is in the surface of the sphere).
This view can lead to a bunch of conclusions, some interesting, some wierd:
1) First of all, time passes because of universe expansion. If axpansions
cease then time stops.
2) If the sphere is not perfect, the time since born of the universe could
be not the same in different parts of the universe.
3) In the case of a big crunch, there must be and end in a singularity,
because no matter the shape of the universe, when a region reach the center
of the sphere time stops for that region.
4) There is no sense to talk about "rapid" or "slow" expansion of the
universe because point 1.
5) It is fun to think about different possibilities of deformations in the
sphere surface that leads to extrange phenomena in time and space behavior.
Sorry about my english, I am not native english speaker.
What do you think?
Regards