This thread will be directly relevant to atheists, yet also maybe to all theists and those who call themselves agnostic.
If you are an atheist and you are reading this post, what is your epistemic position on this topic? Does a necessary being exist?
Yes, without the non-contingent being, no contingent being is possible.
1) Definitions:
A) Possible being :
- Do not exist necessarily by its own nature.
- Contingent being.
- Caused being (a manifestation of an influence exerted by a cause).
- Has a beginning (didn’t always exist).
- May change due to Interaction with other entities within an environment.
- Relative (not self-defined).
Examples:
All observable entities within the universe fit in this category, the entire universe as a being with a beginning (didn’t always exist) about 14 billion years ago, is also a contingent being.
B)
Necessary being:
- A being that exists by virtue of its mere essence.
- Non-Contingent being.
- Brute fact.
- Always exists.
- Unchangeable.
- Absolute.
Examples:
Nothing directly observable in our realm fits in this category. Nonetheless, the observable realm of contingent existence is a manifestation of the necessary existence.
2) Logic:
All possible existence has to be rooted in the necessary existence. All relative entities must be grounded in the absolute.
Observations:
-Our entire realm of observable known existence is composed of continuous chains of causally dependent entities. Every link in the chain is caused by the preceding link.
Question:
-What is the cause/reason, for the existence of the entire chain?
Answers:
A) an infinite regress of causes/effects of possible beings (no beginning).
B) a necessary being is the ground/origin of all possible existence.
Conclusion:
Answer A is not acceptable for the following reasons.
Logical reasons:
- Infinite regress is a logical fallacy.
- Regardless of how long is the chain of possible beings, the entire chain will always remain a contingent being and its instantiation in reality would not be explained.
Scientific reasons:
- Infinite regress necessitates a “Steady State”. A universe that always exists with no beginning. The “Steady State” has been abandoned in favor of the Big Bang theory that identifies a specific beginning of the universe and spacetime about 14 billion years ago. It’s a point of instantiation of the universe in reality beyond this point, all laws of physics, as we know it break down and cease to have any meaning.
Answer B is the only logical option, Infinite regress is a fallacy, the contingent existence can only be explained by the necessary existence. The nature of the necessary existence is beyond any possible knowledge that can be attained within the physical realm.
To summarize, since all items in the entire chain of causally dependent entities of known existence (within our realm) are contingent beings (i.e., “things which do not exist necessarily by their own nature”), then the chain itself remains a contingent being, and there must be a reason that explains its instantiation in reality. The ultimate reason for the instantiation of such a chain of contingent beings must be a being whose existence is not contingent (for otherwise, the chain will remain contingent and its instantiation in reality would not be explained). The existence of the chain of causes and effects is only possible as long as the entire chain is grounded in a being, which exists by virtue of its mere essence.
3) What do we know about the non-contingent (necessary) being?
Logically:
-All possible/contingent entities are caused by the necessary being.
-Possible entities exert an influence on each other down the chain but it does not affect the necessary being.
-The necessary being is unchangeable and not subject to any limitation or any influence of any kind.
- The nature of the necessary being is not like anything contingent.
Scientifically:
- The universe didn’t always exist, i.e., not necessary, the first effect known in our realm is the Big Bang, beyond which there is nothing physical. (Only the necessary/non-physical existence.)
- As a non-physical being, the necessary being cannot be observed directly; only the manifestations of the necessary being can be observed.
- Example, the gravitational field cannot be seen but we understand its existence only through the observation of its manifestations such as an apple falling with specific acceleration. The gravitational field itself (as a contingent being that started after Big Bang) is a manifestation of the necessary being. We cannot see the necessary being but we can only see his manifestations in all contingent entities.
- The necessary being is logically eternal, non-contingent and unchangeable. Knowledge of his specific nature is not possible to be attained but we can only understand his attributes through the manifestations of his being in the observable realm. The nature/magnitude of these manifestations is indicative of attributes of power, intelligence and grandeur beyond limits.