How can you be an atheist if you don’t know everything?

Tommy asks…

An atheist is defined as someone who doesn’t believe there are any gods while an agnostic is someone who says that they don’t know if any gods exist. Simply put an atheist’s claim is an absolute statement that there are no gods while an agnostic is admitting that he doesn’t know, perhaps for lack of evidence he is willing to accept or some other reasons. Therefore, my question is this: Can someone make an absolute claim that is logical, reasonable, and scientifically supported that “there are no gods” without having omniscience? This is a Yes or No question. In order to answer this question you must first begin with Yes or No and then explain your answer. If you do not answer firstly Yes or No then you have not answered the question because the question is, in fact, a yes or no question. If you deny that this is a yes or no question then you’ve failed to understand the question because I am the one asking the question and I require a Yes or No answer. You are perfectly welcome to explain your Yes or No answer, but you must start with Yes or No. If you feel that the entire question is some sort of logical fallacy then your answer to this question is automatically No and then you must explain then why you believe it to be a logical fallacy. The most honest approach to answering my question is to simply answer Yes or No and then explain yourself from there. Otherwise your answer will be viewed as evasive and dishonest.

The problem is Tonny, you are basing your question on a false premise. You assume that a person can’t be both an atheist and an agnostic. I am an atheist/agnostic. I have no (a) belief in gods (theist) because I have no (a) knowledge (gnosis) of any. (knowledge also meaning evidence) This chart will help explain…

Agnostic v Gnostic v Atheist v Theist


In other words, I don’t claim that there are no gods. I claim that the current lack of evidence is such that no gods have been proven to exist and it is because of this that I lack a belief in any. What you are looking for are gnostic/atheists. They lack a belief in gods and also claim that they don’t exist. Which, depending on the gnostic/atheist that you talk to can violate your “Well you don’t know everything” argument. So in a sense, I agree with you. Who knows what’s out there in the land of the undiscovered? Maybe there is a god, I don’t know, and I don’t think you do either. No one does. I am open to the possibility within reason.

So there you go Tommy. Asked and answered. I look forward to your response.

Why don’t scientists prove god doesn’t exist?

Question from Jan,

Hi! First, let’s realize the difference between the following three words: agnostic, atheist and antitheist. OK? Are you ready? So, how can someone who calls himself a scientist be an atheist (or even antitheist)? The science is based on proves – this is the difference between science and belief. Is there any prove of non-existence of something “supernatural” or something like “spiritual power” that is often labeled as “God”? I don’t believe so. I think it’s so arrogant and till the moment of an evidence of non-existence of these “spiritual things” all the so called scientists should choose between: 1) change their status from “atheist” to “agnostic” or 2) change their status from “scientist” to “believer”. Thanks.

Hi Jan, and thank you for your question.

I hate to say it, but there’s a lot wrong with your question. First let’s make sure we get the definitions right.

  1. Atheist: (a) without (theism) belief in gods. So an atheist is someone who lacks a belief in a god or gods.
  2. Antitheist: (anti) oppose (theism) belief in gods. An Antitheist is someone who opposes belief in gods.
  3. Agnostic: (a) without (gnostic) knowledge. An Agnostic is someone without knowledge in something.

Notice the difference between 1 and 3? Atheism and Antitheism (and theism) both deal with beliefs. Agnostic deals with knowledge. That’s an important distinction to make. Agnostic in the theological discussion isn’t as much a third position as it is a qualifier for both atheism and theism. A person can be both an atheist by lacking a belief in a god, and agnostic by not knowing if one exists.  A person can also be a theist by believing in a god, and agnostic by not knowing if one exists. With me so far?

Now let’s talk about what’s called “the burden of proof”. When someone makes a claim of existence, it’s their responsibility (or burden) to prove their claim. It’s not the other persons burden to prove them wrong. If I told you that snarfwidgetes exist, would my position be valid if you can’t prove me wrong even though I have no objective evidence for my claim? Of course not. So when you talk about “ Is there any prove of non-existence of something “supernatural” or something like “spiritual power” that is often labeled as “God”?” what you’re trying to do is switch the burden of proof from yourself, where it belongs, to the other person. It’s a dishonest tactic usually taught by preachers to their peritioners who simply don’t know any better. 

So, to answer your question, scientists can still be atheists and agnostics at the same time. They don’t have to provide any proof for your god not existing. It’s your responsibility as the one making the claim, to provide the proof.

I hope that answers your question. Feel free to continue this discussion in the comment section below.