Question

Can any one suggest a specific start for any kind of expansion of idea!?

Answer 1

starts from infinity.

Answer 2

expanding universe is imagining the universe like a loaf of raisin bread dough.

As the bread rises and expands, the raisins move farther away from each other, but they are still stuck in the dough.

In the case of the universe, there may be raisins out there that we can’t see any more because they have moved away so fast that their light has never reached Earth.

Fortunately, gravity is in control of things at the local level and keeps our raisins together.