We can define hedonism as the conjunction of two propositions.
- One ought to seek out pleasurable experiences.
- One ought to avoid painful experiences.
where ‘pleasurable’ and ‘painful’ are understood expansively.
What is problematic with this view? At first blush, it seems unproblematic – almost trivially true. Of course one ought to want more pleasure and less pain. All I want to show here is how this is problematic from a biological perspective. Let’s consider the second proposition first.
What is a painful experience? Biologically speaking, painful experiences exist in order to guide an animal in avoiding a situation where there is damage to that animal. In other words, from a biological perspective, the important part isn’t the experience of pain but what that indicates.
Similarly, consider pleasure. In natural conditions, feeling pleasure would probably indicate that what one was doing was helping the organism to reach its goals, where the goals would typically be designed into the organism, centering around things like getting nutritional food, reproducing, keeping the right temperature, and so on.
Nowadays, we can see how the sensation of pleasure can misfire, biologically speaking, leading us to behaviour that moves us away from the things the sensation was designed to move us towards. Overeating, for example, can be motivated by a pleasure in the foods, yet given various ‘junk food’ available today it can lead to nutritional deficiencies, obesity, diabetes, and so on.
So, it seems obvious that biologically speaking, hedonism doesn’t make sense at least when operating in an environment that is substantially different from that for which the organism is designed.