So as not to undermine form-meaning mapping, ellipsis must be recoverable (most succinctly, Fiengo & Lasnik 1972) as well as formally identical with an antecedent (e.g., Sag 1976, Williams 1977). Recoverability and identity generally go hand-in-hand, in that ellipsis sites establish identity with the same material from which their meaning is recovered. On the contrary, this paper argues that recoverability and identity are dissociable by examining cases of 'double ellipsis'. With respect to the same recoverable meaning, where a lone ellipsis is bad for violating identity, a second ellipsis makes both good, since the two ellipses satisfy identity for one another. Case studies include voice mismatch in sluicing, Dahl's many clauses puzzle, elliptical answers to questions, and non-linguistic antecedents.