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above formal enough? Could these bulleted ideas be condensed into  one or two paragraphs]}    Following Section \ref{sec:specs}, the 13 criteria can be used to evaluate the serendipity potential of existing systems, which we discuss first. The 13 criteria could also be used to guide design of future systems to maximise potential for serendipity; we explore this in the thought experiment outlined in Section \ref{sec:ww-intro}. \ref{sec:ww}.  \subsubsection*{Key condition for serendipity}