Age of the Universe

To say that we know the age of the universe is like saying that the earth is flat: we can only say that when we have insufficient informaiton.

Age of universe is determined by its expansion, which assumes we know the history of the expansion rate, density of the universe, and composition of the universe. To say that we know any of these is pure arrogance - and thus we have no clue on the real age of the universe. - Opinion of MJ.