No, it does not. For those models it applies to, it prevents geodesics from being infinite into the past.
Yeah, like the geodesics that we find ourselves living within, which is why the theorem applies to this universe and any universe like it.
it is still possible to have a spatially infinite universe.
Like what? These are hocus pocus scenarios that have no scientific backing whatsoever.
SLOT is a statistical law not a fundamental one. It is like saying that if you flip a coin 2 trillion times, you are likely to get about 1 trillion heads. And, more so, your percentage of heads will be close to 50%.
But, given enough repeats, you will eventually flip all heads in 2 trillion flips.
Even though I give you props for the acronym, you are WRONG in stating that SLOT is not a fundamental law.
Again, when you see any organism decay, you are observing the SLOT in action. It never fails.
The universe is a closed system, and is slowly decaying and will eventually find itself in a "heat death". The energy to do work is winding down, and if it is winding down, it must have been wound up.
And the chance of it being wound up (find tuned) by random chance is a 1 chance in 10^10^123...which is ugly...for your side of things.
I have yet to see a coherent philosophical argument against infinite regress. All I have seen have been based on some poorly defined notion of 'transversing' an infinite sequence.
It is simple. You cannot traverse an infinite amount of points in order to arrive at a single point.
If time is infinite, then that would mean that in order to arrive at today, an infinite amount of preceding days were traversed to get here.
So, if each day that preceded today had a natural number attached, what would be the highest number in the bunch?
There can be no answer to this, because there is no such thing as the "highest" number in an infinite set.
So there you have it.
And there is really no way out of it, so you can save yourself the time in trying to come up with some miraculous way to escape the inescapable.
No, if you read what he said, he made a correct statement. There is nothing that prevents a spatially infinite universe. There are arguments founded on classical (non-quantum) physics for there being a singularity in the past by necessity.
Again, Vilenkin said that the theorem is independent of there even being a singularity.
And the Standard Model of the big bang has a singularity, and in that model, the universe certainly began to exist.
None of the ones you have given hold much water. I have pointed out the mistakes. You have ignored them or misunderstood them.
Did I? What have I ignored or misunderstood?
Not at all. We *know* quantum physics is part of how our universe works. And we *know* that it will be relevant for gravity at some energy. We *know* it often gives very counter-intuitive facts about the universe. And we *know* that it is an acausal description of the universe.
And we "know" that philosophical arguments, such as that of infinite regression, is independent of physics.
We "know" that quantum physics can't get you things like married bachelors, or squared circles, or two-sided sticks.
We "know" those things, too.
Which models of quantum gravity have been tested? None. But we know some sort of quantum gravity will be required for a full theory.
Well, when you get that full theory, let me know.
That is a HUGE leap of logic. yes, human engineers design things. But being fine tuned does NOT mean that the universe is designed.
A single cell is more complex than a space shuttle. Yet, the space shuttle was designed, but the cell wasn't?
This is the taxi cab fallacy.
10^10^123 <---the initial fine-tuned parameters which needed to be set from very beginning of the universe beginning.
How do you begin with such precision? Those low entropy conditions were placed there by an intelligent mind.
I understand that is hard for you to deal with, but hey...you will be aight.
False analogy. Since *all* causality (and hence all explanation) has to do with things *within* the universe, there *can be no* explanation (cause) of the universe as a whole.
This is false. The universe (or nature) cannot be used to explain the origins of its own domain...and when you attempt to do so, you are arguing in a circle and thus using fallacious reasoning.
The internet device is within the universe and is not causally closed.
Nothing within the device can be used to explain the origins of the device as a whole.
That is the point that you missed/ignored...and it isn't going away.
External causes are needed for anything which begins to exist...and if you think otherwise, I will leave you to your absurdities (no offense).
False. BGV only applies to semi-classical models. It does not apply to situations involving quantum gravity.
When you can provide a quantum gravity model which does not feature linear temporal ordering (expansion in the "later than" direction), then we will consider the model.
Any model that has been expanding in its history must have had a beginning, and your appeal to quantum gravity is nothing more than atheistic "Quantum Physics" of the gaps.
So please provide actual evidence for a designer, not simply mere possibilities. Claims of fine tuning without addressing the theory dependence of that concept won't be enough.
You have..
1. A universe that began to exist from nothing.
2. A universe that was fine-tuned for life with mathematical/engineering precision.
3. A reason to believe that a First Cause is absolutely, positively necessary.
Between science and philosophy, you have yourself an intelligent designer.
Now of course, none of this will ever be accepted by people who are simply hell-bent on the belief that God does not exist.
I understand this, so I am not at all shocked that even if the Holy Spirit was to slap you guys on the behind, you still wouldn't believe.
You may even blame the slap on quantum physics, though.
Funny that cosmologists don't agree with you.
Borde, Guth, and Vilenkin does.
It is pure speculation on your part that a designer is required. To justify that there was/is a designer, you have to be very clear about how things would look *without* a designer: in other words, how they would look if only natural laws applied. That has not been done, so ALL you have is speculation. Even the BGV theorem, which theists love to exclaim, has very little support within cosmology. It is one argument that may or may not be relevant.
Nonsense. Since 2003 (when the theorem was published), cosmologists have proposed a few models to negate the theorem, and all have failed.
If the theorem has little support from cosmology, then cosmologists wouldn't have been on the record for proposing models to debunk the theorem.
They know/knew whats up.
Hahaha.
Which is a very good reason to be skeptical of their existence.
Syllogism test..
1. If it can't be put into a test tube (verified by science)...
2. Therefore, we should be skeptical of its truth value.
Non sequitur. Test failed.