It is unfortunate that Stephen Hawking has added his voice to a growing chorus of xenophobia and fear regarding what he terms "Aliens."
Secondly, as a scientist, he should know better: Any interstellar civilization would possess such technologies that the meager resources of Earth would be unneeded. If you can travel faster than the speed of light, you can manifest what is needed. Period. Moreover, IF they were hostile- since ETs are already visiting Earth (see… Continue