\section{Conclusion} \label{sec-conclusion} To conclude, we have described the \texttt{maybe} statement: a new language construct allowing developers to express structured uncertainty at development time and for that uncertainty to be resolved through later testing and adaptation. We are in the process of building a prototype of the \texttt{maybe} system for Android smartphones. \section*{Acknowledgments} Students and faculty working on the \texttt{maybe} project are supported by NSF awards \href{http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1205656}{1205656}, \href{http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1409367}{1409367}, and \href{http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1423215}{1423215}. The \texttt{maybe} team thanks the anonymous reviewers and our shepherd, Mahadev Satyanarayanan, for their feedback.