A reason for existence of one-dimension and irreversible time. Possible age of the Universe
Keywords:cosmology, one-dimension time, irreversibility of time, age of the Universe, white hole, black hole, arrow of time
The representation of the observed Universe as an object inside a white or black hole, under the Schwarzschild sphere, allows to identify the observed physical time with an one-dimension gravitational radius, which is the part for the objects irreversible motion. It is a physical reason for existence of one-dimension and irreversible time in the Universe. The two possible values of the age of the Universe are discussed: 14,2 milliard years и 22,32 milliard years.