This is one of the more hopeful explanations of the Fermi paradox. https://en.wikipedia.org/wiki/Fermi_paradox#Hypothetical_explanations_for_the_paradox https:

This is one of the more hopeful explanations of the Fermi paradox. https://en.wikipedia.org/wiki/Fermi_paradox#Hypothetical_explanations_for_the_paradox https://en.wikipedia.org/wiki/Fermi_paradox#Hypothetical_exp... "Alien species may isolate themselves in virtual worlds"