[marktwain]

Yes, I recall it being by Hawking.

It is just another far fetched hypothesis, as is the one that any advanced civilization has to be a peaceful Kumbaya type.

Or, the idea that any advanced civilization would have to be Marxist.

Speculation is fun.

But comparing interstellar extermination to biological evolution is silly.

Can't say the civilization hunting and killing bad guys are not out there; they may be.

I suspect it is more likely they would be a techno-war machine gone bad, instead of any rational purpose of gain.

[PIF]

Read Remembrance of Earth’s Past: The Three Body Problem; The Dark Forest; Death’s End by Cixin Liu.