That question depends on how we define time and the universe.If we define the universe as all that exists, including space, matter, and time itself, then time began with the universe—it didn’t exist "before" because "before" implies time already existed. This aligns with standard interpretations of the Big Bang theory, where space-time itself emerged from the initial singularity.
However, if we consider the possibility of a larger reality beyond our universe, then time could have existed in some form before our universe came into being. Some speculative theories, like eternal inflation or cyclic cosmology, suggest that our universe may be just one phase in a larger, ongoing process.
Ultimately, if time itself is a property of our universe, then asking about "before" the universe is like asking what’s north of the North Pole—it’s a meaningless question. But if time is part of a greater cosmic structure, then something may have existed before.
Thanks, RR.
Certainly an easily digested answer, yet leaves one hungry for more to ponder!
When/if you have “time”, try this one on the Ol’ AI:
If every action has an equal and opposite (re)action, what action was equal to and opposite of the big bang?
And the obvious follow-up: Newton describes a relationship between energy and matter; Einstein worked out the formula of that relationship (energy equals mass x the speed of light x the speed of light). Since there existed neither mass nor light until after the big bang, where did the energy come from to power such an event?