+\end{columns}
+}\note[itemize]{
+\item Toys like the poly cpu one are good to give a quick demo
+\item But we used \clash{} to design 'real' hardware
+\item Reduction circuit sums the numbers in a row of a (sparse) matrix
+\item Nice speed considering we don't optimize for it (only single example!)
+}
+
+% \begin{frame}[plain]
+% \begin{centering}
+% \includegraphics[height=\paperheight]{reducerschematic.png}
+% \end{centering}
+% \end{frame}