What is Plantinga's "Creator Paradox" regarding divine knowledge of modal truths?

Alvin Plantinga — the prominent American philosopher of religion at the University of Notre Dame — presented in his paper "On Ockham's Way Out" (1986) a profound philosophical paradox concerning divine knowledge of modal truths. This paradox, known as the "Creator Paradox," reveals an apparent tension between the classical divine attributes: omnipotence, omniscience, and divine freedom. The paradox is not merely a logical puzzle, but touches the very core of the theistic conception of God.

Inadequate Responses to Avoid

From some defenders of theism:

"Plantinga attacks theism." A grave error. Plantinga is one of the most prominent defenders of Christian theism in contemporary philosophy. His presentation of the paradox is not an attack but an attempt to purify theological concepts from apparent contradictions.

"The paradox is merely playing with logical words." A harmful oversimplification. The paradox deals with fundamental concepts in philosophy of religion: the nature of necessity and possibility, God's relationship to possible worlds, the meaning of divine freedom. Ignoring it means ignoring essential questions in philosophical theology.

"God is above logic, so the paradox doesn't apply to Him." An escape from discussion. Even those who claim God is above human logic need to engage with the paradox to clarify precisely what they mean by "above logic."

From some critics:

"Plantinga proved the contradiction of the theistic concept of God." An unjustified leap. Plantinga presented the paradox and proposed solutions. The philosophical discussion around it continues, and the proposed solutions are multiple. Judging that it "proves contradiction" is premature.

"The paradox applies only to a narrow Christian conception of God." Inaccurate. The paradox applies to any conception that combines omniscience, omnipotence, and divine freedom, which are attributes shared in most theistic conceptions.

Why These Responses Are Inadequate

They share a failure to seriously engage with the logical structure of the paradox. The paradox is neither an attack nor a defense, but a revelation of logical tension that requires precise resolution. Ignoring or rejecting it without analysis weakens the theological position rather than strengthening it.

Structure of the Creator Paradox

The paradox arises from the interaction of three principles, each of which seems reasonable:

First Principle - Divine Knowledge of Modal Truths: God knows all necessary and possible truths. For example, He knows that "2+2=4" is necessary, and that "Napoleon won at Waterloo" is possible but false.

Second Principle - Divine Freedom in Creation: God is free to create or not create, and free to choose which possible world to create. Nothing outside God compels Him to create any particular world.

Third Principle - Dependence of Some Truths on God's Decision: Some truths depend on what God decides to do. For example, the truth "Socrates exists" depends on God's decision to create a world containing Socrates.

The paradox appears as follows:

Suppose God contemplates creating Socrates. Before He decides, does God know the following modal truth: "It is possible for Socrates to exist"?

If we say yes, He knows it: Then God knows that it is possible for Him to create Socrates. But this knowledge presupposes that God is capable of creating Socrates. And God's ability to create Socrates seems to depend on His free decision. So how does God know something that depends on a decision He has not yet made?

If we say no, He doesn't know it: Then there is a modal truth that God doesn't know before He decides. And this violates absolute divine knowledge.

Additional Complexity - Circularity of Knowledge

The paradox deepens when we think about the nature of divine decision itself. For God to decide to create Socrates, He must first know that creating Socrates is possible. But knowing that creating Socrates is possible seems to depend on the ability to create him, which seems to depend on the decision itself. A logical circle.

Plantinga formulates this precisely: Are truths about what God can do (divine modal truths) logically prior to God's decisions, or subsequent to them? Both options seem problematic.

Proposed Solutions

The "Essential Powers" Solution: Thomas Morris and Edward Wierenga proposed that God's ability to create Socrates is not dependent on His decision, but on His necessary nature. God by His nature is capable of creating all possibilia, regardless of His decisions. This breaks the circle: God knows He can create Socrates because this is part of His necessary nature, not the result of a decision.

Critique: But this may constrain divine freedom. If God's ability to create Socrates is necessary, is God truly free not to possess this ability?

The "Distinction Between Types of Possibility" Solution: Some philosophers distinguished between "abstract logical possibility" and "divine power possibility." The former is independent of God's decisions, the latter depends on them. God knows all logical possibilities regardless of His decisions, but power possibilities depend on His decisions.

Critique: This distinction may seem artificial. And it still leaves a question: How does God know which logical possibilities He can actualize before He decides?

The "Divine Timelessness" Solution: Brian Leftow and others proposed that the paradox arises from our temporal conception of God's knowledge and decisions. God is outside time, so it makes no sense to say He knows something "before" He decides. His knowledge and decision are eternally simultaneous.

Critique: This may solve the paradox but raises other questions about the meaning of divine freedom in an atemporal context.

Plantinga's Solution - "Ockham's Way Out"

Plantinga himself leans toward a solution inspired by William of Ockham: distinguishing between "hard facts" about the past and "soft facts." Some facts about the past essentially involve reference to the future, so they are not completely "past."

Similarly, God's knowledge of modal truths may be "soft" in the sense that it doesn't constrain His future freedom. God knows all possibilities, but this knowledge doesn't predetermine what He will choose to do.

Contemporary Developments (2010-2024)

Contemporary philosophers have developed the paradox in new directions:

The "Divine Power and Possible Worlds" Direction: Alexander Pruss and Michael Almeida investigate the paradox's relationship to possible worlds theory. Does God create possible worlds or discover them?

The "Divine Knowledge and Libertarian Freedom" Direction: The interaction between the Creator Paradox and the problem of foreknowledge and human freedom. If God's knowledge of His own abilities is problematic, what about His knowledge of free creatures' actions?

The "Open Theism as Solution" Direction: Some "open future" theologians see in the paradox support for their position: God doesn't know the possible future in a determinate way because it is not actually determinate.

Where We Stand in This Debate Today

The Creator Paradox remains one of the deepest challenges in contemporary philosophy of religion. There is no consensus on a final solution, but the discussion has led to:

- Deepening our understanding of the relationship between necessity and possibility in the divine context
- Clarifying tensions between classical divine attributes
- Developing more precise logical tools for dealing with theological concepts

The wise position, within the framework of rational preference (rajḥān ʿaqlī), is to acknowledge that the paradox reveals the complexity of divine concepts, without necessarily undermining the theistic conception. The proposed solutions, despite their differences, point to the possibility of reconciling divine attributes in multiple ways.

For Advanced Reading

- Advanced level: Possible worlds theory and divine necessity
- Advanced level: Middle Knowledge and the Creator Paradox
- Alvin Plantinga, "On Ockham's Way Out" (Faith and Philosophy, 1986)
- Thomas Morris, "The God of Abraham, Isaac, and Anselm" (Faith and Philosophy, 1984)
- Edward Wierenga, The Nature of God (Cornell UP, 1989)
- "Divine Attributes: Omniscience" page on the website