[ExI] How not to make a thought experiment

[spike]

> ...On Behalf Of Stefano Vaj
> 
> 2010/2/24 John Clark <jonkc at bellsouth.net>:

> > I have no son.
> 
> Mmhhh. Can you prove that? Or should we take you at your word?
> 
> :-)   Stefano Vaj

Perhaps he means no sons that he knows of.

spike

{8^D