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No, we cannot face the centre of the universe because we are always facing it.
Your logic is wrong. It is quite possible for an "infinite" universe to expand because it IS the space itself that is expanding.
Could it be that it is space time that is expanding and what it is expanding into is the universe.
you stated and I quote "So if the universe is infinite how could it be expanding." which I understand means that you consider that an infinite universe could not expand.
The universe in its strictest sense meens absolutely everything so there cannot be anything anywhere that is not in the universe so it cannot have another name.
The universe could either be bounded or of indefinite size (infinite if you perefer tto use the mathematical term)
It is quite possible for a space to be finite and bounded like the inside of a black hole in whatever direction you travel at whatever speed (including light) you will never reach the edge but you could cross your path. It is also not possible to know anything about any other space that may be outside of the black hole.
And who bestowed the right on the mathematical community of soul ownership of the word infinite.
That is enough evidence of the existence of black holes for me and most of the rest of the scientific community.