Pre–Big Bang physics, (PBBP) are physics which can be speculated to have existed prior to the Big Bang. PBBP may have been radically different from the current laws of physics.
Although theoretical speculation on possible PBBP have only begun, research into the field could hold incredible implications for the makeup of the universe, and numerous possibilities beyond the limit of the current laws of physics in possible existence prior to the Big Bang.
References
Pre–Big Bang physics Wikipedia(Text) CC BY-SA