> Reset to caveman status from hightech
Nope.
> https://en.wikipedia.org/wiki/Long-lived_fission_product
We are the first to use nukes.
But a rise from Babel makes sense.
With lots of resets in-betwixt, wherein there is a population decline and impoverishment; and where a small elite make it through with all the technology, knowledge, wealth and military cohesiveness.