Re: Hate to be pragmatic but
My interpretation of TRT's post it: don't get too excited and start heralding vaping as totally safe until we have at least 1 lifetime's worth of study.
Are you disagreeing with that? Are you declaring it completely safe? Are you advocating everyone takes up vaping?DO you have some vested interest?
History is full of completely safe substances & practices that turned out to be anything but. Cautious optimism would seem to be the the right approach.
I advise my few remaining smoking friends to try vaping to quite ciggies, and then to quit vaping.