Are Persuasive Technologies Really Able to Communicate?: Some Remarks to the Application of Discourse Ethics

Since a while the ethics of persuasive technology (PT) have been discussed. One interesting approach is the assessment of PTs in the light of discourse ethics and the speech-act theory as proposed recently. While some see such an approach as promising, the author will illustrate that the application of discourse ethics is only appropriate for a few limited persuasive strategies. It is argued that most often PT does not provide the essentials of a discourse; reason or arguments to convince the counterpart. In line with discourse ethics the elements of speech-act theory refer to the preconditions every debater has to subscribe to in order to reach a mutual understanding that is the ultimate goal of a discourse. It is evident that PT has to deal with serious problems in order to fulfill the preconditions such as comprehensibility, truth, truthfulness and legitimacy. If discourse ethics is the theoretical framework which reflects the moral content of PT, the intention of the designer and his arguments or reasons have to be taken into account. It is argued that this often contradicts the purpose of persuasion or manipulation if PT is applied. This paper provides propositions that should ensure that the design of PT fulfill the basic requirements of discourse ethics.