In the film there's (I'm just going to spoiler this, because I'm not sure what the policy is for the thread) an implication thatIs that present in the book? And is that supposed to be a thread carried over from the 1970s storyline?the far future has high... radiation levels or something (assuming I interpreted that right?) because Moronym can't stay there long and keeps injecting herself with... whatever that thing was.
I think there is indeed some minor
radiation on Hawaii in the novel because Zachary's first story is of his first child being born without a mouth or nose, so it suffocates and dies. They call them "freak births". However, I got the impression those were a coin toss chance and not the norm. I don't remember Meronym having to deal with radiation sickness in the book. In fact, the Precients whole plan is to relocate to Hawaii and live with the Valleysmen to AVOID plagues elsewhere on Earth. So the radiation must not be that bad.