@DC2 mentioned it, but the faster, more intense feeling of inhalation should, IMO, have a much higher potential for addiction than any other method of consumption, except for direct injection to the bloodstream. The skin can absorb a lot of things. But it doesn't give the same kind of effect.And that has what to do with the neuroscience if dependency ?
We are debating why people seemingly get addicted to nicotine from cigarettes, but not from skin patches. But, somehow, skin patches will appease the cravings of some people who used to be smokers. So far in this thread, it has been offered that there must be some mysterious addictive ingredient in cigarettes that when combined with nicotine was somehow able to make users dependant, but nobody has known about this ingredient for all of these years. And I am saying that it is simply because the users are inhaling the drug. Just like they do when vaping. And this is why vaping is a more successful smoking cessation method than is nicotine patches. Even if you went through all of the hand and mouth motions with a vaporizer containing 0mg juice while wearing a nicotine patch, I don't think it would work. It works because the drug is inhaled. In new users, this inhalation is also what creates the dependency.
I am not ANTZ. I love vaping. We need to find a way to stop regulation. But I don't think that is going to happen by denying the obvious fact that nicotine can be an addictive drug. We need to concentrate more on showing that nicotine addiction is harmless and that vaping is not a gateway to smoking tobacco.