
It's very likely to be something much, much worse: The sounds of the first nuclear weapons detonating on American soil. It could simply be an Autumn wind breezing by.except the trees outside aren't moving.
Listen very carefully when you turn the mobile for Baby Shaun in the intro, and you might hear something that sounds like a low, rumbling/whooshing sound coming from outside. And then it happens, and that world is lost forever. If it wasn't for the news report, you'd never even know there was the threat of nuclear war. The game starts on the day the bombs fall, and instead of being what you'd expect, with people cowering in fear and expecting the bombs to come at any moment, it's just. It becomes even worse when we see the Pre-War world. Anyone who has heard actual news reports during large disasters or tragedies knows how jarring and terrifying it is when reporters aren't Stepford Wives levels of upbeat.
Only a trailer and Bethesda already hit us with the nightmare fuel, namely, the news report during the 2077 segments.