 In the tradition perpetuated by Wu, the selectivity of attention is understood as providing a solution to one particular problem, created by the fact that there are multiple courses of action that might be taken at any time, with the taking of any one requiring the others to be suppressed. The solving of this particular problem is not the only cognitive need that could be served by an operation of selectivity, even in a mind without bottlenecks of processing capacity. The selection-for-action theory is therefore not the only alternative to Broadbent’s bottleneck theory. Other functions for attentional selectivity might also be proposed. Alternatively—rather than electing any one of these functions of cognitive selectivity as being the function that is essentially served by attention—we might instead characterize attention as a quite general process of selectivity, recruitable on any of the various occasions when one thing needs to prioritized over another, whether this prioritization is required by the presence of a processing bottleneck, required in order for a coherent action-plan to be executed, or required for some quite different reason. The work of Sebastian Watzl develops the idea that attention might be such a non-specific process of prioritization (Watzl, 2017).