For those who feel their daily musings merit a global audience, there's Twitter. But for those who feel the world couldn't spin on without their 140 character pieces of genius if some tragedy should befall them, there's an app called LivesOn.

The about-to-launch app sends "ghost tweets" from dead hosts' accounts by using artificial intelligence to analyze pre-existing posts from a user's feed and then posting what topics the deceased tweeter would likely post about, or which articles the users would send along to others. The app goes live in March.

Or, as the company's slogan puts it, "When your heart stops beating, you'll keep tweeting. Welcome to your social after life."