Backtracking a little to angels dancing on pinheads or standing on needle points, James Hannam in his fascinating book "God's Philosophers" says (if I remember right) that these were arguments made up by "the enlightenment" to try to discredit medieval philosophy.

Have to say I've never come across the Thomas Aquinas conjectures about angels moving from A to B without traversing the intermediate space. Seems that quantum theory may be old hat....