Out of laziness I have only read this thread till post 110.
Tree of Life post 1 said:
1. Whatever begins to exist has a cause.
2. The universe began to exist.
3. Therefore the universe has a cause.
To examine the validity and soundness, we first ought to define concepts. 'Universe', 'cause' and 'beginning to exist' are ambiguous, as discussion in this thread has illustrated.
What is
the universe? During most of the 20th century the universe was simply everything that existed (minus perhaps God) and was thought to be identical to the observable universe. The
observable universe is our little patch of spacetime, i.e. everything we can observe, and is thought the have a size of about 42 billion lightyears. Today, most cosmologists believe that reality may also includes spacetime before, after or outside the observable universe. I will assume the KCA refers to the observable universe.
What does
'beginning to exist' mean ? It has been said in this thread that every beginning is merely a rearrangement of preexisting stuff. However partikels can really appear without having had a prior existence. For example, photons are created from energy (e.g. an electron jumping to a lower energy state). Also particles pairs can appear in vacuum out of nowhere, a phonomenom responsible for Hawking radiation, the evaporation of black holes.
Presumably the argument refers to a radical transformation of something already existing or the appearance of new stuff. Hence the Big Bang was a beginning, as what came after was radically different from what was before, if anything was before. Therefore, if we accept the Big Bang took place, the the observable universe had a beginning.
What is a
cause ? That seems to be the most tricky concept and the adherents of the KCA ought define it. That would then allow to support premise 1, or undermine it.
Did the universe have a cause ? The 'everything' in premise 1 usually points to every part of the universe, as that is what we appear to observe. However, concluding from that that the universe itself also has a cause would be committing the fallacy of composition : That the parts of a whole have an attribute, does not imply that the whole has that attribute. More specifially, as has been pointoud out, time seems to be a requirement for causality. Hence, if time began at the beginning of the Big Bang, then that requirement would not be met. Hence the KAM would be invalid (or premise 1 would be unsupported).
However, in the last two decades the view of cosmologists on time has shifted. Today most of them believe that there probably was time before the Big Bang. Hence, with proper definitions for cause and 'beginning to exist', it is plausible that the observable universe had a cause.
That was the easy part. Next must be demonstrated that that cause was the god of the Bible. I wish those willing to take up that challenge, strength and perseverance. They will need it.
Tree of Life 6 said:
Saying that time began at a certain moment already suggests that the spacetime universe had a beginning. If time began, then something caused time to begin.
Why would that be ? You seem to assuming it must have a cause because you can't think of how it could have arisen without a cause. However, that is not how one reaches valid conclusions. In addition, it should point you to possibility that maybe time did not have a beginning.
Tree of Life 6 said:
God, as Christians understand him, exists outside of time. Time is his creature. There is no "heavenly time", only a timeless eternity.
What does that mean, existing outside of time ? What is timeless eternity ? What does it mean to exist inside of time ?
Tree of Life 13 to Silmarien said:
Could you describe a quantum vacuum? I'm not sure it can be described in terms of something that is very different from "the universe". Also, the idea of an eternally existing universe or multiverse would entail an actual infinity, which has been shown to be philosophically absurd. Hilbert's Hotel is a good example of this -
Hilbert's paradox of the Grand Hotel – Wikipedia
Most cosmologists accept the possibilith of infinity and Hilbert's paradox is not a real paradox.
Well-Known Member 30 said:
Part of God's "omnipresence" means that He is in all times as well as space. God would be neither bound by space nor time. So yes, in essence "time" existed prior to the creation of the universe. It is just not any type of time that we can fathom or understand...because we are not God.
What does that mean, (not) being bound by time or space ?
Well-Known Member 36 said:
46AND2 23 said:
Eternity has no meaning without time.
I think the reverse it true. Time is meaningless to the eternal.[1] Hence, another reason why the eternal and uncaused "cause" would therefore be "timeless". Timeless, as in, beyond our concept of time. Not without time but the time is meaningless nonetheless. In your case, you could say that if the universe was eternal, time outside our universe would be meaningless.
[1] 'Being meaningless to' means 'unable to understand'. So, according to you, the eternal cannot understand time, correct ?
What does it means for something to be “timeless” or timeless or beyond our concept of time ?
Well-Known Member 36 said:
Silmarien said:
It attempts no such thing. The only attributes the argument speaks to are "uncaused" and "eternal." The rest are just getting a free lunch here.
You are correct that is does not say it at face value. They are all implied. Because the universe cannot have created itself, the cause must be apart from the universe.[1] Because matter can neither be created or destroyed (Law of Conservation of Mass), the cause must be "immaterial".[2] Because all space and time exists within our universe, the cause must be "spaceless" and "timeless".[3] Because the cause is above or outside our natural universe, the cause must be "supernatural".[4] In order to have created a universe to include all the power and energy within it, the cause must be unimaginably powerful.[5] The cause must be personal, meaning that it must have consciousness with the ability to choose, because while in a state of an eternally stable nothingness, it chose to create the universe.[6] It has to be eternal and without cause, otherwise something more powerful must have caused this "cause" to exist.[7] Thus, a spaceless, timeless, immaterial, supernatural, uncaused, personal "cause", must exist if the universe began and has a cause.
(I am assuming the "s don't mean anything.)
[1] If causality does not require prior time, why could the universe not have created itself ?
[2] The law of conservation of mass is not a sturdy one. Although I believe the cause to be immaterial, I don't understand how that is supposed to follow from that law.
[3] So, your argument depends on there being space nor time prior to the Big Bang, something that has yet to be proven.
[4] That is stretching the meaning of the word supernatural.
[5] What evidence do you have that the cause created anything ? As far as I know, causing and creating are not the same activity.
Moreover, creating a universe may require very little energy. In addition, we have no evidence that that cause can do anything else than create a universe.
[6] What evidence can you present that the cause
chose to cause the universe ? Also, can only a person choose ?
[7] Why is that ? What evidence can you present that the cause still exists ?
Well-Known Member 45 said:
46AND2 said:
Word salad. When you have no idea what "the eternal" is, or if it even exists, you can describe it any way you like. Ultimately, though, it doesn't mean anything.
Nothing can be measured without a point of reference or a standard at which to measure it. If something is eternal, there is no point of reference to measure the duration of its existence. Therefore, duration aka "time" is meaningless. It would be like as if I had a rope that was infinite in length. If you were to grab the rope, what part of the rope did you grab? Did you grab it closer to the beginning or the end? Does the rope have an end at all? Now lets just say that this rope was a time line. Without a point of reference, given an eternal and infinite timeline, at what point of time line did you grab?
In mathematics infinities appear often without preventing measurement. An example is something we all learned in school : geometry in Euclidian space.
Why couldn't the moment the Big Bang started be a reference point ?
Tree of Life 46 said:
46AND2 44 said:
There was likely some cause for the singularity to expand and create space and time. Yes. So what? How do you go away from natural causes as we have only ever observed, to a supernatural cause?
I think that the theoretical singularity counts as part of the universe. It's just the universe in a different form. If I'm not mistaken, physicists would say that all the matter and energy that exists in our universe existed in the theoretical singularity.
So did the singularity begin to exist?
The singularity at the beginning of the Big Bang and at the center of black holes is a prediction of the general theory of relativety. However, there is consensus in the scientific community that those conditions are so extreme that they are outside the realm of applicabity of that theory. Only few cosmologists believe the Big Bang started with a singularity.
Tree of Life 85 said:
Morel Orel 51 said:
It's fair because that's basically what I suspect, but I'm not claiming I can prove it or anything of the sort. Do you think your argument still works if that's what it means for the universe to "begin to exist"?
No. An eternally existing universe never began to exist in my book. But I believe there are serious philosophical absurdities entailed in the idea of an eternal universe - let alone scientific evidence that makes an eternal universe implausible.
If the universe is everything that exists, why couldn't it be eternal, for example by being cyclic ?
Tree of Life 85 said:
Perhaps the universe as we know it, and the matter and energy that make it up is all there is, and the big bang was merely a transition from a previous form of our own universe. Again, we have no idea.
Actually, cosmologists have plenty of ideas. See for example the documentary series 'Before the Big Bang' on Youtube.
zippy2006 108 said:
Simlarien 100 said:
My primary frustration here is the failure to define God and explicitly argue from a cause of the universe to anything resembling that definition.
Does it really need to be explicitly stated that God is defined as the creator of the universe? Is anyone confused on that point?
That would be me. I find Christianity confusing. One problem is that God's implicit definition is adapted to the argument. Hence every Christian arguments supports its own god. If they were all sound there would be plenty of gods. These might all be the same, but most apologists, like William Lane Craig, just assume they are, just like most victims of those arguments.
Clear definitions provide clarity, Clarity leads to truth. Some Christians prefer belief in God over reality and hence avoid clarity like the plague.
After you have proven that the universe was created, you may call the creator God, but unless you can prove divine attributes, you would merely have deceived people.