When scientists say universe is expanding I used to think what they meant was that matter is spreading deeper into empty space. Now I realize that actually space is stretching. There is no limit of universe in same way as earth has no edge. My idea of universe was that there is a center of universe and then a huge sphere of matter surrounding it and then limitless empty space. That’s not the fact. Matter is uniformly distributed all over the universe there is no center just as there is no edge. Space is folded in the same way as we fold long slender wire into a loop. The fact is that when universe was created some 14 billion years ago in a big bang the entire universe was compressed in just a point called singularity. All this is derivable through General theory of Relativity / Quantum Mechanics as well as a large part of this theory has been verified through observations. There are still some loose ends but there is general consensus on origin of universe.
What is not however clear is who set the initial parameters for singularity or if they were just random! Similarly we are stuck at the origin of evolution i.e. life evolved from mono-cellular life form in primordial sea is agreed. But whether rich organic sea made membrane which folded into cell and life began on its own due to presence of amino acids which are basic building blocks or first cell was seeded into primordial sea is a matter of debate.
Does any Mullah or Priest or Pundit understand this?
