We haven’t encountered alien life because intelligent societies tend to wipe themselves out – and humans could be next, scientists claim.
The team is located in nasaThe Jet Propulsion Laboratory used a previous theory called the “big filter” to explain their conclusions.
It says that there have been many other civilizations in the history of the universe, but they all wiped themselves out before they had a chance to make contact.
This report—Avoiding the Great Filter: Extraterrestrial Life and the Future of Humanity in the Universe—shows that humanity is on the same path.
“We hypothesize that, as our society moves exponentially toward space exploration, an existential catastrophe may await…” the report said.
“The Great Filter has the potential to wipe out life as we know it, especially when the rate of our progress is directly related to the severity of our fall.
“This points to the need for introspection and then appropriate improvements to properly address our predicament and address the challenges and ways in which we may be able to mitigate risks to humans and the nearly 9 million other species on Earth.”
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The report, which has not yet been peer-reviewed, by Jonathan Jiang, Philip Rosen, Kelly Lu, Kristen Fahy and Piotr Obacz, cites dangers including asteroid strikes, nuclear war, pandemics, climate change and artificial intelligence.
The Great Filter Theory was first proposed by Robin Hanson, an economist at George Mason University, in the late 1990s.
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