"August West"  wrote in message
>
> I've been following the discussion of Hamilton's Rule for several weeks
> now and have been struck by the argument engendered by what seems > to me
to be a very simple model, albeit one based upon one of those
> small but brilliant insights that occur in science.
>
Hamilton's rule is generally accepted, but one of the regs here, John Edser,
disputes it.
One of the reasons he gives is that cost and benefit are not measured in the
same units. It is certainly true that it is very difficult to measure the
cost / benefits of an action in terms of number of grandchildren foregone. I
don't follow why cost and benefit cannot in principle be measured by
counting grandchildren, however.
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