@lewm I am not a medical professional, but have become quite familiar with both Behavioural and Substance addiction.
Walking in their Company and having left their worse influences far behind.
The learning opportunities that followed have placed me in the world on environmental influences and stimulus that is generated.
I stand by my not so usual descriptions, even as layman for this forum as they are.
Funny how captive Dolphins that are not able to be influenced by what captivity offers, are in certain cases capable of ending their lives by no longer surfacing for air.
Mammals and the Mammalian Brain Crave, and to Crave is to seek out stimulus.
Audio Equipment is an environmental influence, and the use is a means to create a stimulus.