Then a backward movement is necessary: he must appreciate the historical justification, and to an equal extent the psychological considerations, in such a movement.
Exactly!
we cannot judge the people of yesteryears using a modern yardstick. Of course they will not hold up.
Akin to the concept of "rationality". You can only say that an agent behaved rationally based on the input it received through its sensors. What it ultimately did may actually be stupid. But, given its enviornment it was the most rational action possible.
Ex: agent that paused a game to avoid defeat
