i can fathom that cannabis creates a physical dependence, as when most long term users quit, there is a notable lack of appetite, sleep issues and irritability along with less common effects such as night sweats/anxiety/depression/boredom. I've experienced them, no big deal to me really. This much has been established in studies.
Psychologically addictive is where there's an argument to be made, if you're the type of person that can get addicted to scratch tickets then maybe you can be addicted to marijuana, but it seems a tiny percentage of people are truly like this. I think for those people, cannabis is being used as a medicine and without that medicine their underlying issues flare up until they can get high again. People with bipolar definitely fall into this area.
For myself, i can take it or leave it at this point, used to smoke several grams a day for years and years, now it just doesn't do anything for me. Once you've gone through opiate/benzo/stim abuse, cannabis is like coffee and provides such minimal effects compared to other drugs out there. Look at stimulant addiction compared to cannabis addiction, big fucking difference there.
