What are the metrics for different branches of the tech tree

# What are the metrics for different branches of the tech tree? * [[Transport]] * Max speed * kJ/gram for fuel * [[Agriculture]] * Calories per hectare * Hectare cultivated per person * From conversation with [[Jason Crawford]]  [Web URL for this note](http://notes.benjaminreinhardt.com/What+are+the+metrics+for+different+branches+of+the+tech+tree) [Comment on this note](http://via.hypothes.is/http://notes.benjaminreinhardt.com/What+are+the+metrics+for+different+branches+of+the+tech+tree)