Intellectual Gymnastics

To say nothing of the five dimensional world,
the countless dimensions can be supposed easily,
based on the two-dimensional plane mathematically,
This theory can be applied to the three dimensional space.

While, the existence of a black holes has been
theoretically estimated by astrophysics.
And, the space orbiters observe its existence now,
and the supernovas have been also observed.

I suppose that the black-holes and white-holes are,
for example, two sides of the same coin
in the space of many dimensions,
in relation to the mathematical theory.

Then, I imagine a tremendous space
far exceeding five dimensions.
I call it the grand grand universe

On the other hands,
it is reported that the light velocity in a vacuum
has been decreased by experimentation.
What on earth happens in this century?