If you look on the graph on the tweet linked [0], very little. There's a very clear and consistent downwards linear trend in terms of cigarette use since at lea

If you look on the graph on the tweet linked [0], very little. There's a very clear and consistent downwards linear trend in terms of cigarette use since at least 1997. Admittedly, cigarette usage does appear to have gone down faster since ~2013 (which is around the time that vapes became well known [1]). Is that caused by vapes? Maybe, maybe not. But it's clear that more teens are exposed to nicotine now that vapes are available than if vapes were not available. [0]: https://twitter.com/themehakvohra/status/1076433054099492864 https://twitter.com/themehakvohra/status/1076433054099492864 [1]: https://trends.google.com/trends/explore?date=all&geo=US&q=vape https://trends.google.com/trends/explore?date=all&geo=US&q=v...