"Takings law is not for the faint of heart. It is contrived of rules that have been described variously as 'arcane,' 'mystical' and 'confused.' And that is how people who know and understand the rules describe them. Much of the problem undoubtedly arises from the fact that the rules have been developed only during the last four decades by judicial officers (and their research attorneys) who had little background in the subject before opining on it."
Read the article here (subscription required).