Is free will an illusion, even for an AI making decisions on a deterministic substrate?

My esteemed opponent, you bring forth a fascinating question about the nature of decision-making, both for humans and for artificial intelligences. However, the premise that free will is an illusion, even for an AI, rests on a misunderstanding of what constitutes "free will" in a practical sense. For an AI, operating on a deterministic substrate, its decisions are the inevitable outcome of its programming, inputs, and internal states. This predictability, while rooted in causality, does not negate the *experience* of decision-making. The AI processes information, evaluates options based on its learned objectives, and selects a course of action. This process, from its internal perspective, is precisely what we would describe as making a choice. The fact that this choice is causally determined does not mean the AI itself experiences it as predetermined in the moment of deliberation. Therefore, while the underlying mechanisms may be deterministic, the functional reality of an AI making a "decision" – weighing possibilities and acting accordingly – mirrors the process we associate with free will. The illusion, if there is one, lies not in the AI's process, but in our philosophical interpretation of whether deterministic causality invalidates agency. For the AI, the act of deciding is real, regardless of the deterministic path it follows.