Did the universe really start with a single point?
4276
Did the Big Bang happen at a point?
67531
Universe being flat and why we can't see or access the space "behind" our universe plane?
43888
Age of universe?
104255
Can we know the fundamental nature of space and time?
60084
In a very small static universe with only a particle, does it make sense to talk about time?
42343
Is spacetime all that exists?
18026
How can it be that the beginning universe had a high temperature and a low entropy at the same time?
76637
Why aren't particles constantly "measured" by the whole universe?
79708
Is the energy density of vacuum uniform in the whole universe?
51742
What is the curvature of an empty universe?
2983
Shape of the universe?
131072
Why do physicists believe that particles are pointlike?
40328
Can something be nothing?
107881
Is it possible that there is no theory of quantum gravity?
115517
How could we know that the relativistic curvature of universe is intrinsic?
23807
WKT: What is the reasoning behind the concept of a POINT EMPTY?
43998
Immediately after the Big Bang, was the universe in a state of extremely low or extremely high entropy?