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| P is for Practical | |
| PerlMonks |
Re: Extraterrestrials haven't visited the Earth yet because:by martin (Friar) |
| on Sep 01, 2016 at 15:22 UTC ( #1170979=note: print w/replies, xml ) | Need Help?? |
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(·) Other reason — Infestations of planets by humans tend to be so short they are unlikely to be perceived by anybody in time to be able to get there while they last.
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