> Replacement won’t be 1:1. What do you mean by this? We would surely produce more calories per gallon of water if we, say, swapped beef with chicken (or plant

> Replacement won’t be 1:1. What do you mean by this? We would surely produce more calories per gallon of water if we, say, swapped beef with chicken (or plants). I guess we might not replace beef with beef, but that wouldn't be a replacement, so that wouldn't make sense.