[AnglePark]

I’ve always believed that if we’re being visited we’d likely never know it. If you have the technology to travel great distances through the galaxy or universe, you have the tech to make nanoprobes.

Unless, they’re not trying to hide, and — if that’s the case — why are they hiding...? ;-)

[Scythian]

See the Video here, it's actually pretty interesting ...

[ontap]

Why travel that far and not make contact?