e/How many angels can dance on the head of a pin?

Information
has gloss	eng: The question how many angels can dance on the head of a pin? has been used many times as a trite dismissal of medieval angelology in particular, of scholasticism in general, and of particular figures such as Duns Scotus and Thomas Aquinas. Another variety of the question is How Many Angels Can Sit On The Head Of A Pin? In modern usage, this question serves as a metaphor for wasting time debating topics of no practical value.
lexicalization	eng: how many angels can dance on the head of a pin?
lexicalization	eng: How many angels can dance on the head of a pin
instance of	(noun) spiritual being attendant upon God angel

Meaning
Japanese
has gloss	jpn: 「針の上で天使は何人踊れるか」（「はりのうえでてんしはなんにんおどれるか」）というのは、中世の天使論、特にスコラ学全般およびヨハネス・ドゥンス・スコトゥスやトマス・アクィナスのような特定の神学者の天使論において、ありがちな間違いとしてよく使われた問題である。
lexicalization	jpn: 針の上で天使は何人踊れるか