Seriously. It could happen in the next hour or it may never happen.I'd rather have the means to survive & not need it than to need to survive & not have the means.
Of course, I have my underground autonomous compound and my 100-year food/water supply so don't even think for a second that you're going to "out do" yours truly where survival preparedness is concerned.
I just want to know how you plan on surviving when the wheels come to a screeching halt.