Lack of expression is not lack of emotion.
It is a sign of self control.A possible precursor to calculated malice.
A sign of sociopathy, or enlightenment, which is just sociopathy inhibited by empathy.
What is complex and what is complicated?
Complicated things can be deconstructed and studied, as they have simple, finite, repeatable responses, with no possible ambiguity in the consequences.
Complex things have multiple interdependencies and muddled causalities, and impossible to forecast accurately.
The definition of insanity seems to be doing the same things over and expecting different results .
But since man is a complex creature, he will not respond to the same stimulus the same way as infinitum.
Hence man is not insane.
These things come out so well in my brain…