Board Thread:Off-topic/@comment-26349008-20150929010525

Why didnt the Homeworld just simply time travel into the past, invade Earth during it's infancy, and kill the Last Universal common ancestor to all life on Earth? The common ancestor of the catalyst that sparked Rose's desertion from the Homeworld?

They would have done this so that rose would have no motivation to rebel.

And if we add steven to the equation, if he somehow time traveled to that same era that homeworld traveled to, how is he going to find and save universal common ancestor of all life on Earth, his great great great great (etc) Grandaddy? 