Ridiculously Short-Sighted and Narrow-Minded
This is ridiculously short-sighted and narrow-minded. It's tunnel vision and has no critical thinking involved, much less creative problem solving, which intelligent lifeforms are very good at.
No...most worlds do not turn into themselves and just decide not to explore the universe because it's too hard. That's what this idiotic and absurdly narrow-minded study has done.
It's saying "Well, that's too hard, so we'll just stop trying and stay home."
HAHAHAHAHAHA! It's fucking LAUGHABLE and they should be embarrassed to publish such an absurdly narrow minded "study". They shouldn't even call it a study.
People with ZERO imagination or creative thinking skills and who also are not good at, or totally lack problem solving skills, are not good at or lack critical thinking skills, will say "Well, that kind makes sense."
Uh...no. It doesn't. Only a small-minded fool would say this is a possibility.
Statistical probability even says this is a ridiculously absurd hypothesis.
I think these people just want to try to solve Fermi's Paradox, and do it with the least amount of brain power possible.
Here's what happens.
Intelligent technologically advanced civilizations MERGE WITH TECHNOLOGY, such as AI and other computer/biotech and genetic engineering, and become Type I civilizations.
I cover all this in my Quantum Life Hypothesis. Which explains very clearly, logically, and reasonably how life evolves in the universe.
Do some civilizations decide to "stay home"? Sure, maybe...
Do some civilizations destroy themselves? Sure, likely.
Do some civilizations evolve beyond the biological and merge with technology and become machines, enhanced by AI, and advance their technology for interstellar travel. Sure...that's highly likely.
The question is only the percentages of alien civilizations that stay home, destroy themselves (dead worlds), and the ones who make it through to the other side and evolve from the biological into technological life forms.
Again...look up Quantum Life Hypothesis.
This is my hypothesis based on logic, reason, critical thinking, and 15 years of astronomical and cosmological, study.
I think the reason we have not discovered life outside earth is that our technology is NOT ADVANCED ENOUGH TO DETECT the kind of life that is detectable, given the extreme distances between star systems, AND that biological life (that doesn't destroy itself or decide to stay home) continues to evolve and merges with technology, becoming silicon based AI enhanced machines capable of interstellar travel because they are no longer limited by their biological bodies which are fragile, inefficient, and not evolved for interstellar travel.
Interstellar travel is IMPRACTICAL for a biological life form that has evolved to live on a planet with an atmosphere and gravity. There's a million reasons why an intelligent, technologically advanced civilization would choose to merge with technology. Technological immortality is a big motivation and incentive...and so is space exploration.
We have to assume that the majority of civilizations will want to expand and populate and at the very least explore their home solar system, and further into their galaxy. To do that, they must evolve beyond the biological into the technological.
At that point TIME becomes irrelevant because they are not limited by time (biological death). Not to mention all the damage space travel, microgravity, radiation and dangers of impacts with space debris have with interstellar travel.
This study is absurdly simplistic and LAZY thinking. It's laughable how ridiculously short sighted and narrow minded it is.