[ that is fascinating. worlds colliding with each other, allowing for this mixture of races. could such a thing ever come to pass on middle-earth? he doubtws the valar would ever allow it. they were strict enough as it is.

elrond listens attentively, making a mental note of this. ]

No, it would seem rather abrupt. We had a similar situation with Men, but they were merely created later. They are as much of Middle-Earth as Elves are.

[ if not more, considering the origins of the elves. ]