RE: virus: necessary reason

Robin Faichney (
Fri, 7 Nov 1997 07:59:07 -0000

> From: David McFadzean[]
> PSR implies that if x is possible then x must exist. I don't buy it.
It does nothing of the kind. As I quoted yesterday from
the Oxford Dictionary of Philosophy:

sufficient reason, principle of: Principle usually associated
with Leibniz... It is sometimes described as the principle
that nothing can be so without there being a reason why it
is so.