brilliant conspiracy
surely it proposes to be man's worst crime ever
i think it's unlikely because exactly the same thing is said about fuel supplies and the space race
(there could be secret military bases in orbit, powered by super-fuels, with super-healthy astronauts
)
i think this idea comes from frustration at technology. all the incredible advances in the last 200 years have left us obsessed with what we will discover/invent next
science fiction has probably made us impatient
on the other hand, the world is already over-poulated. if diseases were suddenly cured, perhaps that could do more harm than good