This article assumes a lot: * The aliens who possess the technological ability to reach Earth are the ones who built it and evolved alongside it. Who's to say

This article assumes a lot: * The aliens who possess the technological ability to reach Earth are the ones who built it and evolved alongside it. Who's to say they didn't take it by force? * FTL is something that must be developed through technology. (i.e. discounting the possibility of naturally occurring wormholes) * The aliens have no inherent desire for exploration Yes, I've watched too much Sci-fi :)