One of the first objections raised by opponents of the Frankfurt-style cases is the two-horned dilemma. This objection was most notably raised by philosophers such as Widerker,
Ginet, and
Kane. The two-horned dilemma focuses on the connection between the agent's inclination and the agent's decision. This connection can be either deterministic or indeterministic. If the connection between the agent's inclination and the agent's decision is deterministic, then proponents of the Frankfurt-style cases are charged with
begging the question. A deterministic connection begs the question because proponents of Frankfurt-style cases are assuming the very thing that is being debated, that moral responsibility does not require alternate possibilities or the ability to do otherwise. Suppose the agent's inclination is causally sufficient for bringing about the agent's decision. This would mean that the agent was determined to make that decision prior to any kind of decision-making. Thus, the agent did not freely come to the decision for reasons of her own. Opponents of the Frankfurt-style cases would immediately contend that the agent is not morally responsible. This is because they are operating from the get-go that moral responsibility requires free will. Therefore, if the Frankfurt-style cases are operating within a metaphysically deterministic framework, then proponents of Frankfurt-style cases cannot reasonably expect their opponents to be convinced. On the other hand, if the connection between the agent's inclination and the agent's decision is indeterministic, then opponents of the Frankfurt-style cases argue that the agent has the ability to do otherwise. This is problematic for proponents of the Frankfurt-style cases because they are supposed to show a situation where an agent is morally responsible for the decision and yet is unable to truly do otherwise. Suppose the agent's inclination and the agent's decision is indeterministic. This means that the agent's inclination is not necessarily indicative of what the agent's decision will be. Thus, it is possible for the agent to show the correct inclination, evade the computer device, but then make the "wrong" decision. Even if the computer device kicks in after the "wrong decision", the agent still encountered the ability to do otherwise. This kind of Frankfurt-style case would fail to present a situation where an agent is morally responsible while lacking alternate possibilities. == Responses ==