Yes -I know that -
so that's why I asked.
You just said "stability".
and you ended with your opinon of stability.
By a moving target - I meant "what kind of stable situation."
Example: a plane is locked into a "stabilized turn"
OR
A plane is so "stable" it will return to a level attitude - no matter how much it is upset.
My little foam models are neutrally stable in darn near any attitude .
Have you ever flown any of these?