Recent work on the acquisition of the binding conditions suggests that pronominal clitics (PCs) encode the presence of an unsaturated argument position. In other words, PC-constructions encode functional abstraction: the argument position related to the PC is re-opened. This interpretation represents a radical departure from traditional analyses (in virtually every syntactic framework, including HPSG and Principles&Parameters), which take PCs to reduce the valence of the predicate to which they are linked, either in the lexicon (HPSG) or in syntax (P&P). In this contribution, I will provide conceptual and empirical motivation for this radical reinterpretation of PC-constructions, by claiming that it considerably enhances the prospects o...