Existance of time before big bang

[Ryan_m_b]

Agreed. And as you stated, before the big bang, all current theories break down. There is no math to describe what happened at this state. And no one has any evidence against anything existing prior to the big bang or even at time zero, so really what can we hope for in the way of maths and evidence in a topic such as this? Does that mean we shut it down? Many of the great discoveries in this field were, while substantiated with math, initially nothing but conjecture and speculation. Speculation is not always senseless.

Speculation without knowledge of the field or accurate data to describe anything is both pointless and against forum rules, speculating explanations must be based on something. As far as I am concerned the OP was answered; current physics cannot say what, if anything conditions were like before the big bang.

Closed pending moderation.

EDIT: The thread has been opened again. All further conversation must make reference to peer-reviewed, mainstream science. "Speculation" henceforth must only be from mainstream science. No personal theories.

 

[Lost in Space]

Space can be described geometrically. If time and space are interchangeable, does that mean that time is geometric too? Doesn't it come down to an understanding of dimensionality? To me, an event can't happen in a zero time state. When we talk about quantum fluctuations occurring that spawn universes, how can these occur without a prior temporal dimension in which they can occur? There is only the singularity at t=0 which is a boundary conditional on our understanding that the universe has a beginning. However, if this 'beginning' was a phase transition of something else that already previously existed it would mean that t>0. It's hard to see how there can be negative time, or for that matter zero time. Yes, time can be run backwards but that is within the temporal dimension, not without it. No matter how it's modeled, it's always going to remain in the realm of speculation because we are confined within our own spacetime. Perhaps there is more than one dimension of time, but without any dimension of time at all I would argue that any geometric spatial dimension can have no real presence or existence.

If there are many universes in the multiverse, each with its own spacetime continuum, how would their time relate to our own, especially if there are wormholes that connect them? Wouldn't it imply that there was some kind of absolute time which linked them all together?