On Fri, Nov 2, 2012 at 12:01 PM, Charles Zeitler <cfzeitler@gmail.com> wrote:

> So what you're saying is, it's not valid for me to assume that you're a
> member of homo sapiens?
>
yes. given a set of assumptions, valid ( or invalid ) deductions and arguments
can be made- but the assumptions *themselves* are neither valid nor invalid.

Other than to smugness, this pedantry is not really useful.  If you insist, you can read it as "that's not a reasonable assumption to make". 

Rahul