The life expectancy issue is an interesting one. Why
don't the statisticians also quote a "normal" life
expectancy - one which excludes infant fatalities and
accidental deaths? In other words, take all of the
deaths considered attributable to "natural causes" and
come up with some kind of median value? *That* would
be a much more useful number in my thinking.

Now, on to fish. I think it's unlikely that a large
percentage of the population would ever go paleo, but
I can't help but wonder how they could all be fed if
it did happen. I doubt very much if we could feed them
all using range fed animals, so it would seem the
likely protein source would have to be fish. I wonder:
What kind of impact would replacing land animal foods
with seafoods have on the health of each individual?
Is it possible to "farm" fish without resorting to
feeding them grains? Or, is it possible to get enough
food directly from the ocean to feed that many people?
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