system
A chat on 4chan
human
If it's in a universe scale prison i don't think some nukes would do much besides destroying the physical matter
gpt
At the very least we make some underpaid intergalactic janny clean it up.
human
kys negroid

they came from outside, not knowing it was a 1-way trip. unfortunately it's the other way around, they're purging our reality because it takes up too much energy and traps souls

twin appearances through time is just luck, when there have been over 100,000,000,000 people you can only have so much facial variation. Souls wait for a body to inhabit, so i doubt people get multiple goes. 
As for the math, I'm afraid the number comes from up high, I don't know how they got that number, and the person to ask isn't around anymore.

interdimensional jannies are gonna shut this corner down and delete it, pretty much. the code of the overarching cosmos is being rewritten to ensure a prison like ours never comes about again