• We lied to you when we told you that electronic cigarettes may be "every bit as dangerous" as tobacco cigarettes.

If electronic cigarette companies were forced to adhere to the MSA, it would bring an end to all electronic cigarette brand name sponsorships, outdoor and transit advertising, branded merchandise, free product samples (except in adult-only establishments), and targeting of youth in advertising.

Fortunately, there is a simple way to evaluate this hypothesis, at least on a preliminary basis, prior to waiting for the results of longitudinal studies. Enough youth are experimenting with electronic cigarettes, and the increase in youth e-cigarette use has been dramatic and sustained enough, that if the gateway hypothesis were correct, we would be starting to see an increase in smoking prevalence among youth due to the many new smoking initiates that were converted from e-cigarette experimentation to smoking.

The biggest problem with Stan's approach is that when you examine e-cigarette users who are not using the product to quit, you are introducing a huge sampling bias. For example, why might someone use e-cigarettes, but not to quit? Most likely, the majority of vapers who are using e-cigarettes for a purpose other than cessation are using e-cigarettes to cut down on the amount they smoke. They are likely to derive benefits from smoking reduction. However, they are almost assuredly not going to quit smoking because they are not trying to quit, nor do they have such a desire.

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