Note to Shelf: The Gemini Incident

Here's a story idea.

Suddenly, for no obvious reason, all living things on earth leap back two minutes.

Of course, all living things on earth are still *there* two minutes ago.  This creates a rather gruesome catastrophe, where people who hadn't moved in those two minutes are merged with their future selves, and die some horrible convulsive deaths. People who were in planes fall from the skies, people in cars tumble in streets. It would be gruesome, so this is clearly a dark story.  I'm thinkin' zombie-movie-level of gore, for the first scene.

But for the rest of the people--the ones that moved far enough--they are left dealing not only with the catastrophe, but with their doppelgänger.

What would the world be like in the aftermath?