So do you all think it's implied that this entire scenario keeps happening over and over, or only that 9S keeps discovering that humanity is dead and has to be killed?
The fact that the PODs apparently reboot Project YoRHa lends itself to the first one, but that they're trying to change it this time by letting the trio keep their memories.
But it also seems convoluted, and I'm not really sure why the machines would take part in it.
Edit: Hm, actually, it makes more sense when you consider that android black boxes are created from machine cores. So the machine hivemind is trying to repress both androids and machines from developing humanity by keeping them occupied with war, basically? That makes the most sense to me.