New Sci Fi Setting Seeds

[PTTG]

Originally Posted by malloyd

The central problem with this as a plot is the Gray Goo isn't relevant at all.
The Russians (or Americans or Chinese or Europeans) could have done this at any time in the prior 7 decades or so, with nuclear weapons, and didn't. Any reasons (and countermeasures) are essentially unchanged by the invention of a new kind of doomsday bomb.

Perhaps the supertech revolution added highly effective anti-missile defenses.