Could a hobbit have done it?

[Althern]

As mentioned in the thread, Glorfindel’s prophesy is really only foresight, as the phantom quite neatly states:

The prophesy didn't mean a man couldn't kill the Witch King, it simply meant that a man wouldn't kill the Witch King.

Could a hobbit have killed the Witch-king? Possibly, but then Glorfindel would have foreseen and prophesised something else.