Yeah but since infinite regression is impossible (even applies to God), we have to posit a different kind of causation...one of which the cause does not precede the effect.
Who said an infinite regress is impossible? Not me. In fact, I think it quite likely that the expansion phase that we are now in is only one phase of a much larger, eternal system.
For example, a bowling ball that has been resting on a cushion for eternity is the cause of the indentation on the cushion...however, the cause doesn't precede the effect, does it?
The the bowling ball has been resting for eternity and the indentation has been around that whole time, then there is no cause for the indentation. On the other hand, if the bowling ball is removed, the indentation would take time to go away: then the cause of its going away would be the removal of the bowling ball.
But it is still the cause, nevertheless.
I disagree. In this case, the indentation is a stable equilibrium with no beginning, so is uncaused.
Because..
1. Everything that begins to exist has a cause.
Prove it. I would say that the *correct* statement is that everything that has a cause has a cause in the universe.
Also, I would point to particle/anti-particle pairs that form spontaneously (in other words, they have no cause even though they start to exist).
The universe began to exist.
Not in the relevant way: there was no time when the universe did not exist.
3. Therefore, the universe has a cause.
I think a better deduction is as follows:
1. All causation happens within the universe and through time.
2. Time is part of the universe.
Therefore
3. The universe not be caused since that would imply a cause of time.
It is apparent that since the universe began to exist, an transcendent cause is necessary...which is why I expect causality to apply outside of the universe.
Again, I disagree. I don't agree that simply beginning means something has a cause (a pre-existent condition that leads via physical laws to the result).
Example; if there were an infinite amount of days which led to today, today would never arrive, because you cannot traverse infinity.
Why not? At any time, an infinite number of days had *already* been transversed. There is no pair of times that is infinitely far apart. There is no beginning: the sequence has simply always been going on.
This is a fundamental misunderstanding of how infinite and finite situations differ. Simply have the infinite number of days before the present be labeled by the negative integers. Each negative integer has a day and here is no first negative integer. Every day has an infinite number of previous days.
No logical problem.
You cannot traverse an infinite amount of discrete points in order to arrive a specific point...but you can arrive at a single point if you begin from single, discrete point.
Sure you can. You just need the events to be separated by decreasing time intervals and you can have everything happen in a finite duration. OR you can have infinitely many points of time corresponding to the infinitely many positions.
Again, no logical problem.
That is the only way we can arrive at today, would be if time itself had a beginning (the singularity).
Nope. That doe snot follow. You are assuming a start and that something actually has to go through an infinite amount of time. That need not be the case. There can be an infinite succession of things that each survive only a finite amount of time.
So yeah, the infinite regression thing is a PROBLEM...a problem that no fancy pancy scientific theory can help you (in general) with.
Sorry, but there really is no logical problem here. All you need to do is learn a bit more about how finite and infinite situations differ and the confusion will resolve.
Sorry, but that is false. The entropy will never decrease....entropy is one of the most understand aspects of physical sciences. It never fails.
Nope. there have been observed cases where entropy decreases. The observed cases occur in systems with a small number of molecules, but it has been observed to happen.
The point is that entropy is a *statistical construct*. It is not a fundamental quantity. And, over the *long* time, it will decrease.
For example, the chances of all molecules of gas in a room collecting in one corner are incredibly small. But they are not zero. And given enough time, it will happen. The entropy will decrease.
An apple that has been rotting in the sun will never become fresh again.
A 90 year old man will never regain his youthfulness.
It aint happening.
The Poincare recurrence time is incredibly long, but it is finite. given an infinite amount of time, a decrease of entropy is eventually guaranteed to happen in any volume you choose.
Now, I understand that atheists tend to view "time" as their God, as you are doing here...and you guys do the same thing with evolution.
"Given billions of years, anything can happen".
Not billions, in this s. Much, MUCH longer than that for a Poincare recurrence time.
Evolution happens because of both mutation and natural selection, which drastically decreases the time in getting to a stable point. Very large changes can happen fairly quickly in evolution (a few tens of millions of years).
Quite the nonsense.
Also, the low entropy conditions REQUIRED for human life had to be set (fine tuned), to the degree of 10^10^123, according to Roger Penrose (see Penrose on the initial conditions of the big bang).
Plenty of very good physicists disagree with his speculations on this.
These low entropy conditions had to be set as a prerequisite requirement from the MOMENT of the big bang.
Otherwise, life would not be permissible. So, you have an uphill battle, amigo.
10^10^123.
That is...ugly.
And roundly found to be wrong. Yes, the initial stages of the universe had to be very low entropy compared to today. But most of the universal expansion has been adiotrophic: with no change in entropy.
Second, and not only that...your argument is presupposing infinite time, when infinite time (as I just demonstrated), is precisely what CANNOT happen.
And I think your argument in this is just flat out wrong.
Well first of all, the theorem only has one condition in order for it to hold...which is that the average Hubble expansion is greater than zero.
That is it...and virtually all models meets that requirement...in fact it applies to...
1. Higher-dimensional bulk space-time.
2. Cyclic universes.
3. Bouncing universe.
4. Bubble universe.
5. Multiverses
6. Quantum Fluctuations
etc, etc, etc
But not cases where universes bud off from quantum percolation, for example.
T1he theory applies to ALL of those models, because they all meet the minimum requirement...or, they have other problems...and it is a reason why all of those models exist in the first place, which is because they all attempt to avoid an absolute beginning, which has been verified by the empirical evidence surrounding the STANDARD MODEL of the big bang.
And once again, did you read the paper and understand it? It supposes a link between the Hubble parameter and time dilation which is fairly commonly assumed, but may not be the case in a more general description.
And another thing I want to point out; it isn't enough to just simply toss out hypothesis'.
What you need is evidence to support your hypothesis...and without it, all you have are possibilities, and possibilities aren't evidence.
Guessing isn't evidence. Speculation isn't evidence.
With the BGV theorem we have actual mathematical proof...and with the standard big bang we have empirical evidence.
No, it is a mathematical proof that certain types of mathematical models cannot do certain things. Whether models satisfying those conditions are reasonable is yet to be seen. The BGV theorem should be considered yet another layer of speculation at this point
So you agree that there is no violation of the BGV theorem, even on the multiverse?
I don't know. I don't know if an average positive expansion is reasonable for a multiverse. I don't know if the link between the Hubble parameter and time dilation is reasonable when dealing with quantum gravity. The BGV argument is, essentially, a classical argument. I frankly think it won't apply when we get the correct theory of quantum gravity.
This is speculation and wishful thinking. I thought we relied on actual evidence in science?
In which case, all speculation about causality in the absence of natural laws should go away.
Show me evidence that a multiverse exists, and then we can talk about "which version of the multiverse is the case".
Until then, you don't even have a theory.
At this point, we don't know how to test our ideas of quantum gravity. The energies are too high for what we can do right now. So, yes, it is speculation. But it is speculation based on reasonable attempts to figure out a quantum theory of gravity.
That said, we have absolutely no evidence of causality outside of the universe. We have absolutely no evidence of causality that is independent of time. And we have absolutely no evidence the universe was designed other than wishful thinking based on supersitious beliefs.
Well when you consider the fact that natural law cannot be used to explain the origins of natural law, then an intelligent creator becomes less speculative.
Not at all. To even talk about causality requires the prior existence of natural laws, so even asking about a cause for them is a highly doubtful quest. Postulating a consciousness that is outside of those laws (subject to which other laws, exactly?) that can produce universes at a whim (through what technology?) is way farther out in terms of speculation.
I do not know you, but I am willing to bet money that you've spent a nice portion of your life arguing against the existence of God than you do with arguing against the truth value of atheism/naturalism.
What truth value for atheism? I am not convinced of the arguments and evidence given for the existence of deities. That is why I am an atheist. I have a variety of philosophical issues with the concept of a supernatural, as well as other questions about the nature and existence of causality.
I have no problem with a God identified with the universe. But I see no evidence at all that our universe was designed or created. Is it possible? Sure. But it is far flung speculation at best.
So, you can kill the whole "neutral" approach.
I've noticed that some unbelievers, that is what they do...they make it seem as if their stance is so neutral, but when dissect what they say and how they say it...it is clear that the scales are unevenly balanced and far from the neutral stuff that they like to portray.
Let me ask this. If I postulated a race of higher dimensional beings that have learned how to create universes and that ours is one of those made by a high school student as a project, would this satisfy you as a 'design' or a 'creator'? To me, it seems like a far more likely scenario that any classical religious speculation. But I don't believe it because there is no evidence for it even though it fits all the claims you make.
You are not neutral either, I would bet. I'm guessing my scenario would not be acceptable to you. Why not?