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@@ -164,11 +164,9 @@ More emotionally charged conversations can be had about converting the United St
 % 113M acres / 5.1 ~= 22M acres
 
 \section{Example: How big could Tenochtitlan have been?}
-The questions described thus far have largely been centered within a physics context.  The paper closes with two more examples that leverage this food energy picture to make historical claims.  The first example relates to the pre-columbian capital of the Aztec Empire, Tenochtitlan, now known as Mexico City.  Tenochtitlan was build on and around a endorheic lake, Texcoco.  Crops were grown in shallow parts of the lake via chinampas, foating patches of decaying patches of vegetation and soil.  Given proximity to water and decaying vegetation these fields were very fertile and productive.  
+The questions described thus far have largely been centered within a physics context.  The paper closes with two more examples that leverage this food energy picture to make historical claims.  The first example relates to the pre-columbian capital of the Aztec Empire, Tenochtitlan, now known as Mexico City.  Tenochtitlan was build on and around a endorheic lake, Texcoco.  Crops were grown in shallow parts of the lake via chinampas, floating patches of decaying vegetation and soil.  Given the proximity to water and decaying vegetation, these fields were very fertile and productive.  
 
-Estimates of Tenochtitlan's population in 1500CE vary widely, from 40,000 \cite{40k} to more than 400,000 \cite{400k}inhabitants. These estimates are made from oral and written records and estimates of archeological building density and land area.  
-was    
-If Tenoch was 100k people, how much land area?
+Estimates of Tenochtitlan's population in 1500CE vary widely, from 40,000 \cite{40k} to more than 400,000 \cite{400k} inhabitants, comparable in size to Paris at that time. These estimates come from oral and written records and estimates of archeological building density and land area.  
 
 \section{Example: Was the Irish Potato Famine a Natural Disaster?}