 The second constructive task facing the trope theorist is that of building something that behaves like a concrete particular does, using only tropes. Exactly how a concrete particular behaves is of course a matter that can be  debated.[30]  This is not a debate to which the trope theorist has had very much—or at least not anything very original—to contribute. Instead, the trope theoretical discussion has been focused on an issue that arguably needs solving before questions concerning what a concrete particular can or cannot do more precisely become relevant: the issue of if and how tropes make up concrete particulars in the first place.