> How can you be neutral on the topic of efficiency? Efficiency is better full stop. Efficiency in doing what, exactly? Efficiency might measure output of X a

> How can you be neutral on the topic of efficiency? Efficiency is better full stop. Efficiency in doing what, exactly? Efficiency might measure output of X as a function of input Y. Is having more X actually helpful or harmful? How will the overall system respond if it suddenly becomes possible to more efficiently transform Y into X? (This can lead to higher rate of consumption of Y) Does a strategy for increasing X / Y happen to damage some other valuable things A, B, C that aren't captured in the definition of the subsystem of X and Y we're trying to optimise?