A glimpse of the universe throughout the Big Bang:

It is necessary to consider that the space within a galaxy does not expand. The galaxies are gravitationally bound from within their respective centres, therefore, the light that reaching our eyes form the stars within our galaxy don't experience any such effect that may have caused due to the expansion of space. Besides, there is a zero gravity sphere around all the galaxies, the space beyond that can only expand. Only the space between the galaxies expands due to the effect of mysterious dark energy.
 
However, the rate of expansion is greater as we approach towards the edge of the visible universe. At the edge of the visible universe the galaxies are receding faster than the speed of light and entering into the invisible universe for ever. Light from such distance can never reach us.

Moreover, the age of the universe is known to be 13.8 billion years and the universe has expanded much more than 46.5 billion 'light years' during that time, but the visibility of light is to the extend of 46.5 billion light years, beyond that light cannot reach us, as the invisible universe starts there.

Therefore, since the expansion of space was much faster than the speed of light during inflation, so some form of signals from that originating location still can reach us where our visibility is extended till the boundary of invisibility at 46.5 billion light years.

Furthermore, we are not located at the edge of the universe but more within it, as such some form of signal originated during 13.8 light years ago can still reach us; as space expanded much faster than the speed of light during that inflation of the universal space, making some of those originating energy slower than us and to reach us late.

In this sense, though there is no definite centre of the present Universe, but the point of the Big Bang may be considered the centre point of the Universe, which we have left 13.8 billion years ago.

 Read What was there before the Big Bang?

 

Those Laws of Physics are fragile if based on time, as the concept of time itself is fragile in reality.

Time is indeed a concept and not a real entity as existential events invoke time. What one sees on a clock is the real representation of conceptual time.

Moreover, time does not occupy any of the three perceptible dimensions of space - length, breadth, depth - rather time can prevail in imperceptible, fourth dimensional state, when a lower, three dimensional reality within space would have no influence on time, only such three dimensional existential events can invoke time. The succession of time is irreversible, independent from any external, existential influence within three dimensional space.

Time is more of an abstract concept; like the abstraction in Mathematics - the process of extracting the underlying structures, patterns or properties of a mathematical concept, removing any dependence on real world objects with which it might originally have been connected.

It is wrong to interpret that Time is a real thing. Rather time is a concept.

 Read What was there before the Big Bang?