(October 10, 2016 at 7:28 pm)vorlon13 Wrote: Noticed something missing in the thread.
Aliens arriving here don't have to be any more advanced than humanity was in the 1960s. Nuclear impulse propulsion was (theoretically) worked out in the late 50s, and shortly thereafter, Feynman noted that other than the will to do it, there was nothing stopping us from building and launching an interstellar craft carrying up to 50,000 colonists.
So the reverse could happen, aliens with their equivalent of our 1960s technology might wind up here. An interesting question would be how many propulsion units would they have left over after braking into orbit around earth ?
And realize, braking into orbit is going to definitely get our attention. With no malice on their part, they are going to knock most/all of our satellites and could seriously disrupt communications and power generation on the surface via EMP effects.
And then what happens ? At that point, without even knowing we're here, they've come damn close to defeating us.
If they're working with 60s technology. and outnumbered fourteen million to one, I'm not gonna sweat too much.
