That last sentence is the key. Of course it’s an addiction (or habit). If he worked 10am to 10pm every weekend doing a side job he’d make the same money or dou

That last sentence is the key. Of course it’s an addiction (or habit). If he worked 10am to 10pm every weekend doing a side job he’d make the same money or double and without the stress. But that would be work, not a series of dopamine hits.