I am wondering this for quite some time, but yesterday when I read a question on here it came to mind again.
Sometimes you hear or read about archeological sites where remains of humans are dug up.
Or an aeroplane that was shot down over an ocean is being lifted up (with possible remains of air force men/women in it).
We say Rest In Peace when we bury our loved ones.
We wouldn’t think about disturbing their peace (in our lifetime), so why is it seemingly okay to disturb that peace after some decades or centuries?
Are there limits to the resting period (be they psychological, or time wise)?