I've just seen the entire "Gantz" anime series and I'm stumped as to what the ending or even the actual purpose of the "Black Ball of Death" as I call it. So I wanted to hear about some theories as to what people think the meaning of that Lain-esque ending was and the why,what and where of gantz the Black Ball of death.
For example: "why do you thik their was a person inside Gantz? I think this is an obvious indication that the Black Ball of death is a type of cybernetic tech.I think it could be like a computer networked to an off site location"
Please use warnings of manga spoilers (I' haven't read it yet). Thankx for your participation,I value your ideas.
-P.L.U.R.-

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