At the end of the End of Eternity, Noys Lambent and Andrew Harlan erase
Eternity from the timeline by deciding not to rescue Cooper from the
20th century. However, they are protected from the Reality Change by a
physiotime field.
If any Eternity personnel were in Reality at the time of the Noys/Andrew
Change, and were protected by physiotime fields, would they have been
protected from the Change also? If so, how would they have coped with
the sudden shift to a mostly radioactive Earth?
How would Eternity agents who were in eras predating the massive
increase in Earth's radioactivity have coped with the sudden shift in
the political/social environment?