\begin{frame}
  \frametitle{Take away}
  \begin{columns}
    \begin{column}{0.69\textwidth}
      \begin{itemize}
        \item Program the network to gossip `as a service'
        \item Easily deployed, not much opt-in needed
      \end{itemize}
    \end{column}
    \begin{column}{0.29\textwidth}
      \centering
      \includegraphics[width=0.75\textwidth]{img/take-away}
    \end{column}
  \end{columns}
\end{frame}