Originally, many of us did our best to hide the fact that other worlds exist. Not other planets... but other fully-functionin', powerful worlds. The wrong kind of people would seek ta conquer 'em. And when the bad guys found out, that's exactly what they set out ta do. Many worlds were covered in darkness, some were lost in sleep, and many people suffered. Powers and knowledge that can have good intentions can also always be twisted dependin' on who has them.