Full Idea
The most extreme version of haecceitism says that anything could possibly have any qualitative character; for instance, there is a world according to which you are a poached egg.
Clarification
See Idea 9668 for haecceitism
Gist of Idea
Extreme haecceitism says you might possibly be a poached egg
Source
David Lewis (On the Plurality of Worlds [1986], 4.4)
Book Reference
Lewis,David: 'On the Plurality of Worlds' [Blackwell 2001], p.239
A Reaction
Presumably a plausible haecceitist view would have to be combined with essentialism, given that the possibility that I might be a poached egg is beyond my intuitive grasp.
Related Idea
Idea 9668 'Haecceitism' is common thisness under dissimilarity, or distinct thisnesses under resemblance [Kaplan]