On Tue, 18 Aug 2015 05:24:29 -0700, trader_4 wrote:

And let's say that cell phone usage has caused
an equal number of deaths and accidents, so that one has just replaced
the other. Does that mean to you that cell phone related accidents and
deaths are not happening in "any meaningful way"?

That might be one answer to the conundrum, that drunk driving enforcement
and cultural changes *exactly* canceled out the skyrocketing cellphone
ownership figures.

However, for it to have exactly canceled the rates, both the timing of
drunk driving changes and the timing of cellphone changes have to agree,
in addition to the rates of each have to exactly cancel each other out.

I think, while that is possible, it's highly unlikely; but, that is yet
another possible answer to the enigma that the cellphone-caused accident
rate doesn't seem to exist - all the while we *think* that it should.