How many angels can dance on the tip of the needle?

How many angels can dance on the tip of the needle? This burning issue was discussed intensively "good" medieval scholars for decades. Currently, more than half a century, the "good" theoretical Physics with equal zeal try to study the properties of strings, branes, higgs, etc. While there are no logical
(http://logicofnature.blogspot.com/) and no experimental
(http://indico.cern.ch/conferenceDisplay.py?confId=113139)
reason for their existence there.