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https://gizmodo.com/11-of-the-weirdest-solutions-to-the-fermi-paradox-456850746
https://www.space.com/25325-fermi-paradox.html
https://www.vox.com/science-and-health/2018/7/3/17522810/aliens-fermi-paradox-drake-equation
https://medium.com/starts-with-a-bang/no-we-havent-solved-the-drake-equation-the-fermi-paradox-or-whether-humans-are-alone-8f31a559f741
https://www.space.com/25325-fermi-paradox.html
https://www.inovacaotecnologica.com.br/noticias/noticia.php?artigo=voce-nao-acredita-ets-entao-esta-contra-probabilidades&id=010130160504#.W5avyuhKiUk
https://www.space.com/25325-fermi-paradox.html
https://www.universetoday.com/138447/finding-alien-life-bad-great-filter/
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https://www.nbcnews.com/mach/science/discovery-alien-life-might-not-bring-response-you-d-expect-ncna849046