The Action-Guidingness of Rational Principles and the Problem of our own Imperfections
Keywords:Action-guidedness, Procrastination, acting under uncertainty, Indeterminate ends, extended action
The following comment discusses the supposedly action-guiding role of rational principles and the question to what extent our imperfections as human agents should influence what these principles are. According to Sergio Tenenbaum, the principles of instrumental rationality (as stated in his theory) are meant to be action-guiding rather than merely evaluative. In the first part of the comment I look at how this action-guiding role is to be understood, especially when it comes to the pursuit of long-term indeterminate ends. The second part of the comment raises the question of whether the principles included in Tenenbaum’s Extended Theory of Rationality should be supplemented by principles for dealing with our own imperfections. I consider two possible sources for further principles: the risk that we will behave irrationally later on and uncertainty about the effectiveness of the means we take.
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