If you take a look at your life as see everything else you are reliant on then you might have a full blown panic attack.

I did once, and it scared the hell out of me and made me worry for months. Then I finally got over it, and now I love when someone asks me, what would I do without my computer if the electric grid suddenly went out worldwide - I can go on talking how I'd have bigger worries than my computer, because "you, me and everyone we know would literally die within a week, followed by a significant part (30-50%) of world population".