Have any studies linked vapes in vivo to cancer yet? Nicotine itself does not appear to be carcinogenic.

Too early for any of the official things to say. We’re still in the “9/10 doctors say smoking is good for your waistline” phase.

Call me crazy, but I happen to believe the best thing for my lungs is plain old air.

That study doesn’t say that the vaping itself has lower associated health risks, just that it doesn’t have the same, known risks as smoking. It could very easily have more risks that are as of yet unknown, because studies haven’t been around enough to tell. If I had to pick from the two, I’d go with smoking, because at least then there’s hundreds/thousands of years of knowledge about the long term effects.

Put simply, I’ve met old dudes who have been rolling their own grits for half a century or more, and still have the physical capacity to bushwhack up mountains with me. I’ve never met a fit old vaper.

(as an aside, rolling your own is the real best approach IMO: no disgusting cigarette butts littered everywhere, and there’s a mindfulness associated with the process that provides a limiting factor)

I'm still trying to find the memo I missed that made it socially acceptable for folks to vape indoors. Come into my house and vape around my kids? Really?

people think it is more surreptitious than it is

Who is walking in to your house and letting off clouds? Generally you ask, or if your host is a vaper wait to see if they do first.

For all other public indoor settings its already illegal.

I've had to tell off at least 2 people who were vaping in the climbing gym in London.