> But how do we know if the memories are true? The other person may never have looked
> like that, until now.
>
> I just looked at the keyboard and thought "I think I remember typing some of a message, but
> maybe I didn't."

The way I look at it, as long as everybody remembers things happening a certain way, and as long as all the evidence shows things happening in that way, then it doesn't really matter whether things actually did happen that way.

Paul