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my $e = abs($z - $Z);
printf "%3d: z=%8f, e=%8f\n", $i, $z, $e;
There is no Extraterrestrial life
There aren't any suitably capable Extraterrestrials
Interstellar travel is too difficult
We're too uncool / not worth the trouble
What do you mean they haven't visited?
Results (463 votes). Check out past polls.