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According to a new study, life on Earth may be much less than we thought.

For decades, researchers believed in the theory of “hard stages” in life, which shows that we must go through a set of very unlikely events to reach the clever life that surrounds us today.

But the new study suggests that it was not unlikely or difficult in the first place. In fact, it may be relatively simple.

If so, these have important effects on living around the world. This shows that life is likely to be elsewhere – and this alien life can wait in more places than we thought.

The theory of “hard steps” showed that life is probably rare: it needs a complete host to start right.

“This is a significant change in our thinking about life history,” said Jennifer McAladi, a professor of earth science in the state and author. “This shows that complex life evolution may be less about the chance and more about the interaction between life and its environment, and new and exciting ways of research in our efforts to understand our roots and place in the world. Slow. ”

On the contrary, with the traditional perspective, the researchers suggest that life is able to create life because of the global environment. The researchers suggest that this is a relatively predictable process that occurs as the planet continues.

“We argue that smart life may not require a series of lucky interruptions,” Mills, who worked in the astronomy laboratory of Professor McAladi in Penn State, said. “Humans have not evolved in the history of” early “or” late “, but” timely “, when there were conditions. It may be just a matter of time, and perhaps other planets could be more quickly than Earth to these conditions To achieve, while other planets may take even more. “

The researchers present several methods to test their beliefs behind the new study. This includes searching for other planets and understanding whether those hard steps are unique to our planet – or even look at our own planet, to see if it may happen more than once.

This work is described in an article, “Reconciliation of the” Hard Stage “pattern for the evolution of smart life, published in the journal. Scientific advancesHuman