Но физики допускают -
Filippenko also suspects something along those lines might be true.
"I think time in our universe started with the Big Bang, but I think we were a fluctuation from a predecessor, a mother universe," Filippenko said.
http://www.space.com/13347-big-bang-origins-universe-birth.html
То есть возможна флуктуация от предшественника, которая вызвала большой взрыв. А там еще, что-то.