7 best (and worst) theories of what caused Revolution's blackout

J.J. Abrams has a penchant for building his TV shows around big mysteries, and there’s nothing much bigger than the global phenomenon that shuts down electricity indefinitely on NBC's Revolution. So what the heck caused the mysterious blackout? We have no idea, but here are some of the best (and worst) theories making the rounds.

The writers have already peeled back a few clues about the blackout via flashbacks and big reveals, but the details are still shrouded in mystery. We know those scarce little pendants can turn the power back on with limited range. We also know that Mathesons helped develop the tech that would eventually end up in the government’s hands and plunge the world into darkness.

With the back half of season one set to return March 25, here are some crazy and semi-plausible theories to ponder for the next month and a half.

(Via Revolution Wiki, IGN, Revolution-Forum, TV Guide, etc.)