Key Definitions
Negative Atheism:
The absence of belief in God due to insufficient evidence; it does not assert
that God does not exist. As God would be a serious matter, to ignore him
that way would be tacit denial or practical denial.
Positive Atheism:
The belief that God does not exist, accompanied by the claim that this can be
supported by reasons or evidence.
Negative Theism:
Belief in God based solely on the absence of evidence against God, without
offering positive justification for God's existence.
Positive Theism:
Belief that God exists, supported by what is taken to be positive arguments,
evidence, or revelation.
Agnosticism:
The position that one does not know whether God exists; it neither affirms nor
denies God’s existence.
Introduction
Debates about negative atheism, negative theism, and the burden of proof often become confused by unclear definitions or faulty analogies. The purpose of this revised text is to present a clearer, more consistent argument about why negative atheism may be the more reasonable default position, especially when evidence for or against theism is lacking. The following discussion aims to clarify the issues without relying on fallacious reasoning.
Revised Text
Critics sometimes argue that negative atheism is flawed because it relies on the absence of evidence, and that this absence could justify believing or disbelieving almost anything. However, the same concern applies to negative theism. If lacking evidence against something were enough to justify belief, one could adopt countless unsupported beliefs. Thus, the point is not that negative theism is worse, but that absence of counter-evidence alone is insufficient grounds for belief.
Negative atheism differs from arbitrary disbelief about everyday matters. For instance, lacking evidence that your spouse is a particular kind of person is not the same as lacking evidence for a supernatural being whose existence, if real, is expected to have wide-reaching effects. In religious contexts, many traditions claim that God is present, personal, and responsive. If such a being existed, it is reasonable to expect at least some accessible indications of that presence.
A common defense of negative theism is that “there is no reason to think God does not exist.” But this principle would also license belief in countless unsupported entities. By contrast, we have historical context for claims such as the marriages of Henry VIII, so comparisons of this sort are not symmetrical.
Negative atheism may be preferable to negative theism because negative theism introduces commitments to a being described as morally authoritative and deserving of total devotion. Such a commitment carries practical and ethical implications that cannot rest solely on the absence of contrary evidence. A belief system that imposes significant demands requires more than neutrality of evidence to be credible.
Kenny, Flew, and the Burden of Proof
Antony Flew argued that the burden of proof lies with the person making the positive claim—namely, that God exists. The negative atheist simply withholds belief, and this withholding does not require justification beyond the lack of evidence. Anthony Kenny challenges Flew, contending that the negative atheist is also taking a position that may require justification.
The distinction between negative atheism and agnosticism becomes important here. Flew held that agnosticism presupposes that the concept of God is meaningful, whereas negative atheism withholds both belief and assent to the meaningfulness of the claim. Kenny objects that agnosticism does not require assuming God makes sense; one can be agnostic precisely because one does not know whether the concept is coherent.
Kenny argues that when in doubt, one should presume ignorance rather than belief or disbelief, because it is easier to justify withholding commitment than to justify either positive stance. However, Flew is justified in pointing out that if the concept of God implies a personal being who wishes to relate to us, the lack of accessible evidence may itself count against the claim. In such a case, withholding belief (negative atheism) may be the more consistent response.
If negative atheism is defined as simply the absence of belief in God, and negative theism as the absence of disbelief, it might appear that either can be adopted arbitrarily. But negative theism entails minimal belief in God, whereas negative atheism entails no such commitment. If one were switching between the two on a whim, theism would no longer function as a meaningful belief. This supports Flew’s view that negative atheism is the more stable and coherent default.
Which Presumption Is Wiser?
Believing in God solely because there is no evidence against God is not epistemically equivalent to withholding belief until adequate evidence arises. The first strategy accepts a positive claim without support; the second refrains from commitment until warranted. The latter is more consistent with cautious reasoning.
Some argue that assuming God exists is simpler or safer. But if a good God exists, sincerity and intellectual honesty should suffice. Moreover, an assumption that carries major moral consequences—such as divine commands or obligations—requires more justification than an assumption that carries none.
If only two options are allowed—negative atheism and negative theism—negative atheism avoids unnecessary commitments and avoids attributing authority to a being whose existence is unproven. It is therefore the more reasonable assumption when evidence is lacking.
Revelation and Assumption
Assuming God exists also undermines the authority of claimed revelations. If one believes in God only as an assumption, then any revelation accepted on that basis is also accepted on assumption. Such chains of assumption cannot yield certainty. A good or understanding God, if real, would not fault a person for refusing to build their life on unverified claims.
Thus, if one must adopt a presumption, negative atheism is epistemically safer than negative theism. If theism is held merely as an assumption, it cannot function as a belief in a revealing God.
Other Comparisons
Arguments that we need God to guarantee reliable reasoning do not establish the existence of a personal deity. At most, they suggest that reliable cognition requires some underlying order, which could be explained by impersonal forces or the structure of nature itself. They do not justify belief in divine revelation.
Similarly, believing in other persons is not comparable to believing in God. Other persons are encountered directly and play necessary roles in human life. Belief in God is neither forced by experience nor required for practical functioning. Therefore, the analogy fails.
Final Considerations
Given four possibilities:
No evidence for God → the more reasonable assumption is non-existence until evidence appears.
No evidence against God → does not justify assuming existence.
No evidence either way → withholding belief is the safest default.
No possibility of evidence → belief or disbelief cannot be justified; non-commitment is the only consistent stance.
Across all cases, negative atheism—understood as withholding belief in the absence of adequate evidence—remains the most cautious and coherent option.
Conclusion
When the concept of God is treated carefully, the position that demands the fewest assumptions and carries the least unjustified commitment is negative atheism. It avoids the pitfalls of believing without evidence and does not burden the believer with obligations grounded only in assumption. While agnosticism remains a legitimate stance, negative atheism is the simpler and more consistent default when evidence is lacking and when the consequences of belief are significant.
Assuming divine existence requires the most commitment and the most justification.
Assuming divine non-existence requires fewer assumptions but still goes beyond the data when evidence is unclear.
Withholding belief in the divine requires the least commitment and makes the fewest assumptions.
Try a hypothetical test. In an either/or situation, if you literally have to forget two and remember one, it is going to be the last one you stand by. This test reveals that any openness to God arises from a logical and probably psychological bias - don't let believers tell you it is about objectivity and avoidance of deception. Bias is one of the main psychological mechanisms that enables and sustains self-deception. The contradiction between God being and not being about truth itself would push you towards some form of atheism.