In fact, many vapers have reported that after switching to electronic cigarettes, they have lost the desire to return to smoking because the taste of tobacco cigarettes is no longer pleasant after having experiencing the flavors of electronic cigarettes. It is possible, then, that electronic cigarettes do not serve as a gateway to tobacco smoking but instead, serve as a sort of barrier to tobacco smoking.

In fact, I went so far as to the of four FDA Tobacco Products Scientific Advisory Committee (TPSAC) panel members - Dr. Neal Benowitz, Dr. Jack Henningfield, Dr. Dorothy Hatsukami, and Dr. Jonathan Samet - because they had significant conflicts of interest with pharmaceutical companies that made it impossible for them to offer objective advice to the Agency on federal tobacco regulatory policy matters.

In other words, the blatant flaw in this study is that it enrolled smokers who had already made quit attempts using e-cigarettes in the past. By definition, this resulted in a sample of smokers who were more resistant to quitting. One would expect to find lower quitting rates among this population of e-cigarette users.

If I had to characterize the two camps, I wouldn't characterize them as optimists vs. pessimists. I would characterize them as scientists who are actually talking to vapers and considering their experiences versus those who are stuck in ivory towers. I would characterize them as scientists who are pure idealists versus those who live in the real world. And finally, I would characterize them as scientists who are paying attention to the actual scientific evidence versus those who are ignoring the evidence and basing their opinions on ideology.

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