No, it's not.
I will address 3 main points in this article to support the Theist [believing in God] stance inshaa' Allah.
The 1st point will explain Scientifically why the Multi/Universe cannot be Eternal.
The 2nd point will be Philosophical as to why the Multi/Universe is not eternal.
The 3rd point will discuss why I believe God is the Designer of this Universe.
Introduction: The Big Bang.
Edwin Hubble studied the universe through his innovative famous Hubble Telescope, and discovered that the stars in our universe were gradually distancing from each other, concluding that the universe was continuously expanding. But if the universe was continuouslly expanding as time progressed, how was the universe like in the past? How was the universe like in the beginning? He concluded that if the universe is expanding into the future, if reversed - it would have become smaller and smaller, until it started from a single point - a Singularity. This Singularity is a point with enormous mass all condensed, to fit that single point. In the future - this single point would expand continuously to form an expanding universe - like the one we live in right now. It would be within this Universe that everything takes place.
(NOTE: Whether you agree or disagree with the Big Bang is a separate issue, but this is when you are addressing the atheists.)
This is as far as science takes us. Anything that could happen 'before' this Singularity is not proven in Science. Since this Singularity was the origin of our universe according to the theory of the Big Bang.
What Caused the Big Bang?
When Theists heard of the Big Bang, they joyed in the fact that this Universe had a Origin point - refuting the Atheists & Philosophers of old who said the Universe was static/existant forever without the need of God. Atheists on the other hand denied that God did it, and they replied - this Universe is part of a series of other Universes [A Multiverse] - maybe forming as a side reaction to them other Universes. But both groups can't actually prove their statements, since this is out of the boundaries of scientific discovery.
A point to consider however is that: The argument of the atheist is not really a powerful one - since the question just shifts to - How did the Multiverse originate (instead of, how did the Universe originate)?
If the atheist was to reply back with the classical; Who created God, the reply could be that: God is not created, He is timeless. This however logically fits. A universe going back infinitly in time, defies logic especially when considering Entropy (as will be explained below). A God which is timeless on the other hand (meaning not inside of the dimension of time) does not defy logic.
1) The Scientific Explanation: The Rule of Entropy.
Imagine a glass of Ice, placed in a hot room. The ice will gradually melt, and become water, and finally the water will heat up to the temperature of the room. This water cannot return back to ice form in such an environment.
Now imagine this Universe/Multiverse - it has alot of Energy Stored within it [potential/stored energy]. This energy causes the movements [kinetic energy] of the planets/stars etc. But Energy continuously changes state - this Movement Energy converts into Heat Energy as a side reaction. This Heat Energy does not cause much benefit since it cannot change into a useful state of Energy.
Energy of the Universe:
Potential/Stored Energy --> Movement Energy (of the Planets/stars etc.) --> Heat Energy (unuseful Energy.)
Energy is Limited (due to Universe being in Closed system) --- Planet/star movement Produces Heat --- When Heat at Maximum, Maximum Entropy reached. Universe Stops moving.
Key: --> (Produces.)
As the Stored/Potential Energy is used, Movement is Produced - so Heat is produced.
When the Stored Energy is totally used up, the Movement of the Universe stops, and the Heat Energy has reached its maximum. This Heat Energy is irreversible and cannot cause Movement again, just like the water cannot return back to ice in that environment. Just like a battery has used up all its energy. This is in effect called Maximum Entropy (Maximum Heat Reached).
So the Universe/Multiverse has a limited amount of Energy - due to the theory of the Multiverse seeing the Multiverse with the same Universal laws as the Universe we live in. Since this Universe has a closed system, the Multiverse also has a closed system. And a closed system is like a sugar tablet, it will only contain a limited amount of Energy, which when used up - ceases to provide energy for anything.
So we see that according to the Rule of Entropy, we should reflect on the following points;
1] If the Multiverse was Eternal/Infinite/Forever years old, it would run out of Useful Energy along time ago (since Maximum Entropy would already be reached then.).
2] (Based on 1) No Useful Energy an infinite time ago - would make it Impossible for this Universe to come into existence (since this Universe would require Energy to form & expand.)
3] HOWEVER, this universe did come into existence.
2] There will be a time when this Universe, or even Multiverse will come to an End in the future.
1] When this Multiverse comes to an End (due to Maximum Entropy being reached) - It stops functioning. - Where does this universe/multiverse get its new Useful Energy from? It would need Energy from an outside source. Meaning that there has to be a 'first Original cause' for everything all over again.
2) The Philosophical Argument: Infinite people Ahead of You, Will you ever get your turn?
A Universe/s Regressing back Infinitely is illogical. How?
Imagine you're standing in a line, with infinite amount of people standing ahead of you.
Will you ever get your turn?
The same way this universe would never get its chance to come into existence, if infinite universes were before it.
The same way God is not created by a series of infinitely regressing created gods, otherwise this God would have infinite amount of 'gods' before He could 'come into existence'.
So instead we affirm that God is One, the Originator, without being created. And this does not defy logic, since God by definition is infinite.
3) Why do I believe God did it?
Theists argue that its miraculous that this Universe contains life [i.e. on Earth].
Atheists will reply that it's lucky that this Universe does contain life, but this is a product of coincidence, since the many Universes before may not have contained life, until this one was able to be in a way to support it (Also known as the Anthropic Principle.)
So how can you take such a point to your advantage?
Reply: Scientifically, we're only aware of this one Universe. There is no scientific proof of other Universes/Multiverse. So the fact that we are sure of this Universe, and the fact that its probable that only this Universe has ever been existant - then this Universe being suitable for life is a miraculous feat. Furthermore, its even more miraculous that this Universe is not only suitable for life, but actually sustains life too, and has done so for many thousands of years. This seems miraculous to me, especially when this is the only Universe that we're scientifically aware of.
The Atheist will probably reply; "you find the world/universe miraculous to observe, but if it didn't sustain us, we [the human race] wouldn't be able to observe it." [i.e. we wouldn't even be able to observe the universe if it wasn't suitable to sustain us.]
Your Counter-Reply would be; That is what you could call the "contra-anthropic-principle". But that seems like a fancy way for saying, "It is like that because if it weren't like that then it wouldn't be like that". Well yeah, obviously, but that still doesn't make it any less miraculous than it already is!
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