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Re:Greetings, E.T. (Please Don’t Murder Us.) by ekianjo on Thursday June 29, 2017 @06:37AM (#14662127)
> Tipping off a rogue sentient AI that killed off their own creators is what I am more afraid of.

That kind of AI would be more busy harvesting new worlds than trying to care about an inferior species like ours (and they would likely not even be in the vicinity so no reason to travel up to us either).

Re:Greetings, E.T. (Please Don’t Murder Us.) by deorder on Thursday June 29, 2017 @11:08AM (#14663892)
That is what makes that kind of AI dangerous. It just does not care and / or need a reason we could understand. It may decide to visit us in 250 years and reach us ~250 years later.

Other possibilities:

- The sentient / strong AI may have (developed) FTL travel / signalling capabilities which from our current understanding does not seem to be possible.

- The AI may have sent out scouts millions of years ago into multiple directions. The closest scout only needs to decide to conquer / harvest our planet.

- A combination of the above, for example: FTL signalling and activating scouts where needed.

Re:Greetings, E.T. (Please Don’t Murder Us.) by Shivetya on Thursday June 29, 2017 @07:35AM (#14662345)
Well I guess it all comes down to proximity then. Perhaps we are better discovering other life far enough way that based on our knowledge of FTL that they won't get to us any time soon.

favorite quote about the possibility concerning all of this Arthur C. Clarke — 'Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.'

Re:Greetings, E.T. (Please Don’t Murder Us.) by perseusprime11 on Thursday June 29, 2017 @06:56AM (#14662189)
Not likely. Good AI will be equally powerful to stop it.