>>>Or I could be dreaming everything, including moments shared and responses I give.
>>>
>>>How do I know you (or even I) for that matter - really exist.
>>
>>Cogito, ergo sum.
>
>There's a joke about a guy who said that and vanished.
Is it this one?
http://venus.soci.niu.edu/~archives/TOMPAINE/apr97/0097.htmlI thought the last line in the message was very funny, too :)