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\subsubsection*{Dimensions of serendipity}  The four components described above have attributes that may be present to a greater or lesser degree. These are: \emph{Chance} -- how likely was the trigger to appear?; \emph{Curiosity} -- how likely was this trigger to be identified as interesting?;--  \emph{Sagacity} --  how likely was it that the interesting trigger would be turned into a result?; -- and \emph{Value} (how valuable is the result that is ultimately produced?). \begin{itemize}  \item \textbf{Chance}: Fleming \citeyear{fleming} noted: ``There are