Addiction as Entrenchment
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The prevailing theories around addiction (physical and mental) are phrased in terms of physical things. Consider these quotes from a medically reviewed article by the Cleveland Clinic:
[A]ddiction is a disease — it’s a chronic condition. The American Society of Addiction Medicine (ASAM) defines addiction as a chronic brain disorder. Addiction doesn’t happen from having a lack of willpower or as a result of making bad decisions. Your brain chemistry changes with addiction.
And:
Behavioral addictions can occur with any activity that’s capable of stimulating your brain’s reward system.
And:
A significant part of how addiction develops is through changes in your brain chemistry.
Substances and certain activities affect your brain, especially the reward center of your brain.
Humans are biologically motivated to seek rewards. […] When you spend time with a loved one or eat a delicious meal, your body releases a chemical called dopamine, which makes you feel pleasure. It becomes a cycle: You seek out these experiences because they reward you with good feelings.
And:
Over time, the substances or activities change your brain chemistry, and you become desensitized to their effects. You then need more to produce the same effect.
In other words, the core of this ‘explanation’ is desensitization: your brain gets used to certain chemicals that feel good, so then you do more of whatever gets your brain those chemicals. A higher dose is required for the same effect.
Over time, the substances or activities change your brain chemistry, and you become desensitized to their effects. You then need more to produce the same effect.
There could be a small grain of truth in this explanation when translated into epistemologically proper terms and divorced from hardware specifics.
Usually, when something is fun, that means you engage with it and learn from it. As the fun wanes, you learn less and naturally direct your attention elsewhere. Think of a video game you’ve gotten really good at: first it’s fun, then it gets boring. Boredom means the game doesn’t solve your problems anymore, it doesn’t fit into your problem situation anymore. So you play another game or do something else entirely.
But with addiction, this feedback mechanism seems to work differently: instead of getting bored and looking for stimulation elsewhere, the addict looks for more stimulation from the same activity.