How do you propose there was a cause that somehow happened "before" time itself?
If the universe had a cycle of repeated Big Crunches and Big Bangs, then before this last Big Bang your talking about were the final moments of the last Big Crunch.
Idle speculation. There is no evidence or reason to assume that the "Big Crunch" version of universal annihilation is true.
You asked how to propose that there could be a before the big bang. I did. You're welcome. Of course I cannot prove it, I don't see why I need to. Its just a proposition.
The expansion of the universe is actually speeding up!
That's debatable.
Besides, you can speculate about other universes and such as much as you want - the fact is there is no evidence that they exist. It's all speculation and philosophy at this point.
Well, there's not really any evidence that the singularity ever existed either. It too is speculation.
Wrong. Singularity is the point at the beginning of the line. Time existed in the sinularity as a single point, with no past or future. There could be nothing on the line if the line did not exist!
Draw a line. Here, I'll do it for you.
.---------------------------------->
See the dot? That's the singularity. The line is time (okay, it's actually a ray). The arrow is the present. Everything to the left of the arrow is the past. What is further to the left than the singularity?
-------.-------->
There ya go, now there is something before the singularity. The first '-' after the '.' is the big bang and the first '-' before the '.' is the last big crunch, which happened
before singularity and was the cause of the singualrtiy.(more speculation btw)
The singularity encompassed all of time, just as it encompassed all of space (remember, they are related). Everything was a single point at the first moment, including time itself. There WAS no line. there was a point. There was no before, no after. Just an infinite present.
Idle speculation.
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