Seeing that we’re talking about rebirth… the following could explain, partly,what i call “collective kamma” :
““Bhikkhus, those who depart from the human realm, those will be reborn as humans or devas can be compared to the few grains of sand that I pickup on my fingernail. Those who are reborn in the lower four realms are exceedingly many, compared to the sand on this great Earth”.
Meaning, how to explain all the collective suffering of so many innocent people at once (innocent as for the actual bhava that their gandhabbas are grasping in their actual bodies) in Siria, african countries, etc etc… ? Hundreds of people dying all at the same moment who didn’t do any really serious misdeed all along their (even) shorter life?