I think it's also important to bear in mind that we are getting far less nicotine through vaping than we did from a comparable amount of smoking. If you look over the evidence that a very small percentage of the total mg. of nicotine in liquid is absorbed into the bloodstream, it's easy to see why vaping low nic levels can leave you with cravings. I don't really care how many mg. there are in my juice, it's what I sense from the results of vaping that matters. It matters to me because it's what keeps me away from cigarettes. The shock or concern people are voicing is disproportional to the dangers of e-liquid. If 48 mg were that dangerous, I'd have succumbed long ago.
Like the majority of people, I am averse to discomfort or pain. I'm not going to blindly continue taking in something that is making me feel ill or uncomfortable. Nicotine is a positive physiological reinforcement--if it were unpleasant or life-threatening, none of us would have continued using it, let alone until we dropped dead from it. There are people who will swallow a full bottle of aspirin, but the gov't doesn't try to limit the supply of aspirin to the public as a result. Our government is aware there are self-destructive fools for whom you cannot ban all known substances simply because they could find a way to harm or kill themselves one way or another. You can drink enough water to die if you are really so inclined. We are sophisticated creatures, right down to the bottom of the food chain. We don't need to measure sodium concentrations in our bodily fluid to know when we need water--we get thirsty! We drink until our bodies reach homeostasis, then we aren't thirsty anymore. Same with food, same with nicotine (for which our brains signal a need when it runs dry), same with any other "need". I'm not saying there won't be some aspiring candidate for the Darwin Award who will pour their e-liquid on the rocks and swig it down just to see what happens and it won't bother me much if the FDA moves to ban it. It might be harder to stay supplied, but it won't be impossible. The gov't has done a great job of eliminating marijuana, haven't they? If I'm not going to let my own gov't. determine the amount of nicotine I need, I'm sure as hell not going to let the Chinese gov't. do so. Who arbitrarily decides how much nicotine should be put into e-liquid?
"I'll sleep when I'm dead!" ~Zevon
wow ty Liz, incredibly cogent points