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Quantum Fluctuation… M.S. Mousavi Karimi (171

                   nothing.  The  creatio  ex             nihilo. (e.g: Smith, 1988;
                   nihilo  of  the  world,                Ibid; 1994a; Ibid, 1994b)

                   however,  is  a  causal
                   physical      phenomenon,             Nowadays most scientists
                   and    hence,     can    be        agree  that  neither  of  the

                   explained  scientifically          scientific  models  being
                   by appealing to the laws           presented  to  show  the  pre-
                   of  nature.  (e.g:  The            eternality  of  the  world  has

                   Tryon-Vilenkin          and        proved  satisfactory.  There  is
                   Hawking-Hartle models)             either    no     experimental
                                                      evidence  supporting  them

                   3.    The     universe    is       (cyclic  cosmologies,  loop
                   temporally finite, and yet         quantum  cosmology  and
                   does     not     have      a       string  theory)  or  there  is
                   temporal        beginning.         indeed  strong  experimental

                   That  is  to  say,  the            evidence  against  them  (the
                   temporal  finite  universe         steady-state           theory).
                   always      existed.    (e.g:      Scenario (1) therefore is not

                   Grünbaum 1991; Ibid, 1994)         popular today. Scenarios (3)
                                                      and      (4)     are     indeed
                   4.    The     universe    is       philosophical interpretations

                   temporally  finite,  and  it       of  scenario  (2).  They  are
                   is  not  the  case  that  it       neither  the  only  nor  the
                   always existed. However,           most  important  philosophical
                   the    creation    of    the       theories in this case.

                   universe is a spontaneous             This  is  indeed  where
                   uncaused  origination  ex
                                                      philosophers’ opinions diverge
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