Core Concepts

Actualism
Agent-Causality
Alternative Possibilities
Causa Sui
Causal Closure
Causalism
Causality
Certainty
Chance
Chance Not Direct Cause
Chaos Theory
The Cogito Model
Compatibilism
Complexity
Comprehensive   Compatibilism
Conceptual Analysis
Contingency
Control
Could Do Otherwise
Creativity
Default Responsibility
De-liberation
Determination
Determination Fallacy
Determinism
Disambiguation
Double Effect
Either Way
Enlightenment
Emergent Determinism
Epistemic Freedom
Ethical Fallacy
Experimental Philosophy
Extreme Libertarianism
Event Has Many Causes
Frankfurt Cases
Free Choice
Freedom of Action
"Free Will"
Free Will Axiom
Free Will in Antiquity
Free Will Mechanisms
Free Will Requirements
Free Will Theorem
Future Contingency
Hard Incompatibilism
Idea of Freedom
Illusion of Determinism
Illusionism
Impossibilism
Incompatibilism
Indeterminacy
Indeterminism
Infinities
Laplace's Demon
Libertarianism
Liberty of Indifference
Libet Experiments
Luck
Master Argument
Modest Libertarianism
Moral Necessity
Moral Responsibility
Moral Sentiments
Mysteries
Naturalism
Necessity
Noise
Non-Causality
Nonlocality
Origination
Possibilism
Possibilities
Pre-determinism
Predictability
Probability
Pseudo-Problem
Random When?/Where?
Rational Fallacy
Reason
Refutations
Replay
Responsibility
Same Circumstances
Scandal
Second Thoughts
Self-Determination
Semicompatibilism
Separability
Soft Causality
Special Relativity
Standard Argument
Supercompatibilism
Superdeterminism
Taxonomy
Temporal Sequence
Tertium Quid
Torn Decision
Two-Stage Models
Ultimate Responsibility
Uncertainty
Up To Us
Voluntarism
What If Dennett and Kane Did Otherwise?

Causa Sui
Causa sui is the Latin name for a self-caused cause, one that is not the result of prior events.
A main idea in modern quantum mechanical indeterminism is an event that is unpredictable from prior events, or at best can be predicted only with some probability, not certainty.

Can we regard that as a causa sui?

We will see that a quantum event can play a similar role to the causa sui of the ancients, initiating a new causal chain of events in the macroscopic world.

Causa sui in theology is associated with the power of God to perform miracles, which are often thought to cause major changes in the physical world.

In contrast, our quantum-mechanical causa sui will be seen to be almost the least amount of change in the physical world that one might imagine.

Nevertheless, in the right places quantum events can be a difference that makes all the difference.

A quantum mechanical event is initially only one atomic (or subatomic) particle that is here rather than there, or events that do or do not occur - unpredictably.

This unpredictability has been exaggerated beyond reason by some philosophers who claim extravagant possibilities, like fish turning to stone (P. H. Nowell-Smith).

To appreciate how small the typical quantum event is, think of it as one particle in the 1024 atoms that make up human-size objects.

So our quantum-mechanical causa sui is quite minor, yet it can have a major effect - if it is part of a thought.

For it is in immaterial thoughts (pure information) that simple presence or absence can be a most meaningful difference, for example the negation of a thought (or action dependent on that thought).

Our causa sui can be the difference between being and nothingness, between one and zero, between yes and no, something rather than nothing.

The core idea of determinism is closely related to the idea of causality. But we can have causality without determinism, if among the causes is a quantum event that was itself unpredictable and to some extent uncaused. And the departure from strict causality is very slight compared to the miraculous ideas associated with the causa sui of the ancients.
We call it "soft causality".
Despite David Hume's critical attack on the necessity of causes, many philosophers embrace causality strongly. Some even connect it to the very possibility of logic and reason.
Generally they oppose the idea of a "dreaded causa sui."
Even in a world that contains quantum uncertainty, macroscopic objects are determined to an extraordinary degree. Newton's laws of motion are deterministic enough to send men to the moon and back.
In our Cogito model, the Macro Mind is large enough to ignore quantum uncertainty for the purpose of the reasoning will. The neural system is robust enough to insure that mental decisions are reliably transmitted to our limbs.
We call this determinism, limited as it is in extremely small structures, "adequate determinism." The world is adequately determined to send men to the moon. The presence of quantum uncertainty leads philosophers to call the world "indeterministic."
They logically and simplistically argue that if determinism is not true, then indeterminism must be true. But indeterminism is seriously misleading when most events in the world are overwhelmingly "adequately determined."