It's been general knowledge in the scientific,governmental and,private sectors
that nicotine was not the problem for a long time. That is why those execs at
the committee hearings got blind sided. They had every reason to rationally
believe nicotine wasn't addictive and or if it was it wasn't addictive enough
to be the reason for people to keep smoking. This is the insidious nature of
what we are up against. There isn't any proof indicating if nicotine itself
is addictive and if it is how addictive is it. In clinical trails when nicotine was
administered as a medicine those that never used tobacco did not develop
any dependency. Conversely those that smoked cigarettes did not reduce
their consumption because of the extra nicotine they were getting nor increase
their usage to make up for the nicotine once the treatments stopped.
In all humbleness to tell the truth all I know is I smoked for 38 years.
Why did vaping work so well? Who knows. My guess it's a combination
of the toxins built up over 38 years and my body's recognition of the
nicotine. The reduction of toxins over time weaned me off cigarettes and the
nicotine along with the ritual aspects of mimicking smoking acted as
a placebo and or a combination of all of these. Your guess is as good as
mine.

Regards
Mike