What is "undecidability"

Usage examples of "undecidability".

Excess, delirium, anxiety, sublimity, preposterousness, undecidability, the mise en abîme of binary oppositions, the breakdown of representational order: these are all consequences -- or better, hi-tech "special effects" -- of presence itself, and not (as the deconstructionists too simply suppose) of the critique or deferral of presence.