New research shows that intelligent life, in principle, can develop into planets rather than exceptions.
Researchers at Pennsylvania State University Proposed in a new academic paper That human-like life form can be a logical result of the development of the planet. This contradicts the long-standing “hard step” theory.
“This new perspective suggests that the emergence of intellectual life may not be such a long shot after all,” says Jason Wright, a co-author of the scientific paper, astronomy and astrophysics in Pennsylvania. He said he is a professor.
“Instead of a series of unlikely events, evolution is a more predictable process and could unfold as global conditions allow,” he said. “Our framework applies not only to Earth but also to other planets, increasing the likelihood that life similar to ours exists elsewhere.”
Paper proposal, Published On Friday in the peer-reviewed journal Science Advances, the “hard step” model, developed in 1983 by theoretical physicist Brandon Carter, a “hard step” model that opposes the commonly held understanding of the evolution of complex life developed by theoretical physicist Brandon Carter in 1983.
The theory argues that the development of complex and intellectual life is a very unlikely event, and the result of a series of rare events. In other words, there are very few civilizations on other planets.
However, a new model developed by a team of researchers, including astrophysicists and geologists, suggests that human development on Earth is unlikely to be possible after all.
“We argue that intelligent life may not require a series of lucky breaks,” said Dan Mills, the paper's lead author.
“Humans did not evolve “early” or “slowly” in Earth's history, but when conditions were right, they evolved “on time”,” he said. “It's probably just a matter of time, and while other planets can probably achieve these conditions more quickly than Earth, other planets may take even longer.”
This study argues that important evolutionary steps are the result of logical and predictable events.
For example, photosynthesis from plant life naturally created an oxygen-rich atmosphere, allowing the expansion of animal life on the planet.
In contrast to Carter's claim that complex life caused by random favorable conditions was derived as an abnormality, new research suggests that “windows of habitability” is a natural progression of the Earth itself . .
Carter made his judgment based on the lifespan of the sun. Modern researchers are now rejecting it.
“We believe we need to use geological time scales rather than based on predictions based on the lifespan of the sun, because it takes time for the atmosphere and landscape to change. That's it,” Wright said.
“These are the normal timescales on Earth,” he said. “When life evolves with a planet, it evolves at the planet's pace on a planet's time scale.”
