This happens frequently. Consider what happens when the
same meme is born in persons A and B. It must really be a
synthesis of other memes already in those persons. That is not to
say A and B had identical memes before it's birth, there is more
than one way to biuld a the same meme. This process of
"reinventing the wheel" requires no interperson comunication at
all.
Tony
If the human brain was sufficiently simple for us
to be able to understand it, we'd be too simple to
understand it.