Check out a recent video from the YouTube channel Cool Worlds titled “Do ‘Grabby Aliens’ Solve The Fermi Paradox?” for an interesting argument against a now popular idea.
Grabby aliens, as defined by Google AI, are
…a hypothetical type of “loud” alien civilization that are known for inhibiting the development of other technological civilizations in their area of influence. The concept of quiet and loud aliens is used to model hypotheses about the existence of extraterrestrial intelligence, particularly in the context of the Fermi Paradox.
You can read all about this theory at grabbyaliens.com. Then you can listen to Professor David Kipping provide three reasons why he does not believe this theory is workable.
As always, he provides an entertaining and enlightening view of the cosmos.
Our Awesome Universe 