@squig I would counter with my own anecdotal experience. I was struck with multiple pulmonary embolisms in 2013, and couldn't smoke anymore. My pulmonologist suggested switching to a vape, and I've been using it happily since then. I breathe better than I ever have, with no side effects or undesirable symptoms. It's not completely harmless, and people who don't smoke shouldn't start vaping, but there's no rational argument that it's anywhere near as harmful as smoking.