Unity of causation

Our subjective experience of free will leads us to the false belief that there are at least two types of causality-"physical causality", the type that connects events outside of human brains and "willed causality", the type that connects an individuals decisions or conscious actions to the events they affect. "willed causality" is the most efficient way to understand events at the level of human activity, but it can be reduced to physical causality becasue all of the neurological events occuring in human minds are physical/chemical phenomena adhering to the laws of physics. So, willed causality is an emergent property of physical causality, not an independent source of causation.