What's your Mental Ground Zero?

Here's another Generation X definition that got me thinking. Mental Ground Zero: The location where one visualizes oneself during the dropping of the atomic bomb; frequently, a shopping mall.

I can't remember ever thinking about where I would be "during the dropping of the atomic bomb." Why is that? Generational? I'm twelve years younger than Douglas Coupland. Does that mean I'm not part of Generation X? I remember the cold war - I was a teenager when it ended - and that WWIII was a real possibility, but I don't remember visualizing the dropping of atomic bombs. (At least not the atomic bomb - like it's an inevitability and only a matter of time.)

Maybe growing up in Sweden was different. Maybe I don't worry much? Maybe I was a child with poor imagination?Maybe my memory is bad? I can't say I have a great deal of memories from my childhood. Is that normal? Has my move abroad - being so far away from all the people and places I grew up with - disconnected me from all that?