deletions | additions       diff --git a/background.tex b/background.tex  index 09c7e6c..52eceb9 100644  --- a/background.tex  +++ b/background.tex 
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bridge to a result $R$, which is ultimately given a positive  evaluation.  \begin{center}  \begingroup  \tikzset{  block/.style = {draw, fill=white, rectangle, minimum height=3em, minimum width=3em},  tmp/.style = {coordinate},   sum/.style= {draw, fill=white, circle, node distance=1cm},  input/.style = {coordinate},  output/.style= {coordinate},  pinstyle/.style = {pin edge={to-,thin,black}}  }  \begin{tikzpicture}[auto, node distance=2cm,>=latex']  \node [sum] (sum1) {};  \node [input, name=pinput, above left=.7cm and .7cm of sum1] (pinput) {};  \node [input, name=tinput, left of=sum1] (tinput) {};  \node [input, name=minput, below left of=sum1] (minput) {};  \node [input, name=minput, right of=sum1] (moutput) {};  \draw [->] (pinput) -- node{$p$} (sum1);  \draw [->] (tinput) -- node{\vphantom{{\tiny g}}$T$} (sum1);  \draw [->] (sum1) -- node{\vphantom{{\tiny g}}$T^{\star}$} (moutput);  \end{tikzpicture}  \hspace{1cm}  \begin{tikzpicture}[auto, node distance=2cm,>=latex']  \node [sum] (sum1) {};  \node [input, name=pinput, above left=.7cm and .7cm of sum1] (pinput) {};  \node [input, name=tinput, left of=sum1] (tinput) {};  \node [input, name=minput, below left of=sum1] (minput) {};  \node [sum, right of=sum1] (sum2) {};  \node [input, name=minput, right of=sum2] (moutput) {};  \draw [->] (pinput) -- node{$p^{\prime}$} (sum1);  \draw [->] (tinput) -- node{\vphantom{{\tiny g}}$T^{\star}$} (sum1);  \draw [->] (sum1) -- node{\vphantom{{\tiny g}}$R$} (sum2);  \draw [->] (sum2) -- node{$|R|>0$} (moutput);  \end{tikzpicture}  \endgroup  \end{center} % \input{schematic-tikz}  {\centering  \includegraphics[width=.8\textwidth]{schematic}  \par}  \subsubsection*{ Step 2: Evaluation standards for computational serendipity}  \begin{quote} {\em Using Step 1, clearly state what standards you use to evaluate the serendipity of your