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In a previous paper   , the author has proposed the following concepts: the Hubble field, the constant value of acceleration of the Universe expansion, a De Sitter-Hubble gravitational equation, and the possibility of an imaginary time, all of them mainly oriented to a hypothesis about the Universe destiny. This work mentions some theories about the origin of the Universe and suggests the existence of a limit for the physical Universe. Accordingly to a relevant author  , there aredoi:10.4236/jmp.2018.99115 fatcat:u4q7kz5ef5btrchvpgv6f6puli