This headline in a tweet made me laugh today:
Little-Known Apps That Entrepreneurs Can’t Live Without zite.to/12UBJNu
— C.C. Chapman (@cc_chapman) April 30, 2013
If they're
little-known apps, that means most entrepreneuers don't have them; but if entrepreneurs can't live without the apps, does that mean most entrepreneurs are dying?
Fortunately, English isn't that literal.
"Can't live without it" is an idiom; it doesn't mean exactly what it says. If you can't live without something, it usually means you love it or find it extremely useful.
People aren't dying, but somehow that headline still struck my funny bone.