I was merely mimicing your first sentence of your post - i.e. your statement that you were a Christian who knew something about science. I have seen arguments similar to yours and, I hate to say it, I really find them rather simplistic. I would never argue that any scientific theory takes away God from the picture, but, if you are going to argue that God is absoutely necessary, you should at least understand what the physicists are saying about the subject.
JEP: Not a problem. And, I realize of course there is no way to prove or disprove a god theory using physical science. If there is a Holy Spirit indwelling man, then I highly doubt my internist will find it with his stethoscope. Stick around though; I may just decide to beam down some pictures of God via the COBE satellite.
But, unfortunately, we are not talking about the beginning of something that exists in spacetime, we are talking about the beginning of spacetime itself (and whether or not this question has any meaning).
JEP: But we really are talking about things that exist in space-time. We are talking about rivers, mountains, planets and people. Matter--and how it came into existence.
Space, time, matter, and energy are intricably linked as shown by GR.
JEP: Yes. I believe I pointed out this same truism to another poster on this thread.
Yet, the fact that the Universe has exactly zero net energy has everything to do with whether or not the 1st Law of Thermodynamics was ever violated (which by the way can be "violated" in a sense for extrordinarily short periods of time at the quantum scale due to a quirk of quantum uncertainty, more on this if you are interested), which is the point I was refuting. Agreed?
JEP: Kind of agreed, but only from my soap box. I believe our main contention on virtual particles might be their cause and origin. Some particle physicists would have us believe that these particles are springing from nothing. They just seem to poof into and out of, existence. But I dont believe this to be true. Hawking states that these particles spring from energy.
And we would probably disagree with the definition of nothing. The particles that physicists observe springing forth come from a vacuum consisting of three spatial dimensions and a fourth dimension called time with energy present. This is certainly not nothing. True nothingness is a void not comprehendible to human cognizance.
And are they springing at all? No one knows this for sure. They could be coming from another universe. They could be juxtapositioning themselves from other dimensions. Flip-flopping through dimensions, so to speak. Or, they could be juxtapositioning themselves from other parts of our own universe.
Therefore the objection is not that the emergence of the Universe violates the 1st Law, because it doesn't, but a question on how the opposites got seperated. Now that is a tougher question.
JEP: I do understand your logic here on this balance and agree that this is the case, but is it relevant? Not really, and perhaps Ill get you to see where Im going with a summation:
If time and space and matter in this universe were created in the Big Bang then there was nothing in existence at all in this universe prior the bang. NOTHING could have existed in this universe because there was no space in which to put something into to exist and there was no time in which anything could exist. Quantum mechanics cannot explain the inception of our universe either because these virtual particles would have no space or energy to spring out of and even if somehow they magically morphed themselves into existence from a void, they would have no time to exist in.
We can only conclude that whatever was the first cause of our universe came from outside of it. So, how far off is the Christian doctrine that concludes that a personage they call God came from a time-less megaverse called Eternity to cause it? *slapping hand* Couldnt resist that. Baaa
d apologist.
"JEP IN A PREVIOUS POST: But it seems there are boundaries in THIS universe if you accept Euclidian Geometrical descriptions of it. What is outside those boundaries is anybodys guess. "
JOE: That is a huge "if" because you won't find many purely Euclidian cosmologists out there. Problem is that General Relativity has shown that spacetime "bends" and is therefore not Euclidian. Now, some recent data suggests that the Universe is much "flatter" than many cosmologists expected, but that does not mean that it is Euclidian.
JEP: Well, I am one that believes Euclidianism (made that one up) is the best explanation out there right now. This answers many questions that are relevant. The foremost might be if we are the only universe out there and our universe is expanding, then what the heck is it expanding into?? Through Euclidian cosmology we can ascertain it is expanding into itself. Of course, I always keep an open mind as new discoveries and theory come into the picture. And Im not a mathematician or a physicist, so I want to be sure and point that out up front.
Common sense is notoriously unreliable. For one, things will stay in motion unless some force acts upon them
JEP: Exactly my point. And things that are at rest will stay at rest unless something acts upon them. The paramount question here is what acted upon our universe to set it in motion--a singularity event in the black hole of another universe, or a deity? But whatever our conclusion, something acted upon it, suggesting to us that it had a beginning.
A much better thing to say would be that we know the Universe has not existed for an infinite amount of time because entropy hasn't maximized for the Universe (a state where all particles in the Universe are equally distributed from each other).
JEP: It is true that the second law of thermodynamics will eventually dictate our universe to maximize its entropy in the form of a heat death where all in the universe will be nothing more than a random sea of floating particles. This also suggests to us that our universe has beginning. Why? Because entropy is minimal at creation
..at beginning
when order is at its maximum and grows to maximum entropy as the entity ages, disorders and dies. We can actually watch this happening.
General Relativity and much of the the subsequent work on it has shown that time is not something that exists apart from the Universe - it is an integral part of the Universe itself. Discussions of the "beginning" of the Universe are really about the "beginning" of spacetime. Therefore, regardless of "when" spacetime began, the Universe itself has existed for all time - i.e. all points of time that are real. So asking what was before to the Big Bang is akin to asking what is North of North Pole (as Hawking is fond of saying).
JEP: No disrespect intended, but that is just semantics to me, Joe. The beginning of space-time is also the inception of our universe.
The definition of time itself comes into play a lot here, and, believe it or not, this is not as simple as issue as many seem to think. Time itself may not be the dimension we seem to perceive it to be - some work has been doen suggesting that time is an illusionary dimension.
JEP: Time has been viewed as an illusionary dimension since the days of Plato. But the way I view time renders it a very real and interactive dimension. If I gave you a three dimensional map of the solar system and called you at 8:00 in the morning and asked you to plot our sun on the map so I can see where its at, you could not do so. Because when I come over at 3:00 to see it, it would no longer be where it was when you plotted it at 8:00 that morning. But if I you measure this three dimensional map in inches and use four dimensions to plot the sun, I can find it. For example, 8 width, 10 height, 12 depth, 4:00 PM EST. So time, if viewed thusly, is a very real and interactive dimension.