Let's start with a population of roughly 30,000 Reavers (.1% of Miranda's population of 30,000,000)
1. How come the Reavers were all on ships in orbit/near Miranda ? How come none remained on the surface (other then to make easier for the crew of Serenity to find the beacon without having to fight their way to it) ?
2. And where did they get all those ships? I mean there could not have been that many on Miranda. Especially since there seems to be consistent Reaver on Reaver violence as shown in the movie when one Reaver Spaceship rips apart another Reaver Spaceship.
3. Given that the tape/video was at least 12 years old, how did the Reavers sustain themselves? I mean they have to eat right? And sustaining that level of rage requires a great deal of energy, more then I suspect could be acquired from the occasional raiding parties to rape people to death, eat their flesh and then sew their skins into clothes, if we're lucky and they do it in that order.
4. How do they communicate and cooperate? They just seem to be in a constant, violent rage ? Or operate complex equipment like a spaceship, or even repair that equipment to keep it even at minimally operative levels?
5. How come the G23 Pax had no effect on the crew of Serenity when they landed on Miranda?
6. So how did that one guy in Bushwhacked become a Reaver? It's not just watching the horrible things that Reavers do that make you become one, is it?
7. Are all the Reavers destroyed in the end of Serenity? Given that it appears that the entire Reaver fleet follows Serenity and there is a huge battle with the waiting Alliance fleet, with apparently only a few getting through to land on the small moon and be killed off by the crew of Serenity while Mal broadwaves the message. Since there is no threat of them after that, and while they repair their ship and Mal has to endure the whingeing of a failed .gov operative then console a greiving widow, listen to a whore before talking to a teenage girl about love.