- Scientists have spent an incredible amount trying to find out what conditions support life, and why the Earth is so perfect for living things.
- Now, a researcher has simulated 100,000 planets to try to find out how lucky we are that the Earth has remained a human habitation for so long.
- As it turns out, we are extremely fortunate that it seems to be the Earth ‘s practice to return to residence even after catastrophic events.
This should go without saying, but just in case you did not consider it in time, I will go ahead and comment: We are, in fact, very lucky to live on Earth. Earth, as far as we know, is the only planet that has ever supported life, and it has been made for billions of years. That is a remarkable achievement and one that puts the Earth in a group of one.
Now, that is not to say that life on Earth was never easy. In fact, our planet has faced many events that have disappeared during its tenure as a basis for life. However, it has always brought things back to a sort of state of balance. Yes, it might take millions and millions of years for that to happen, but it was always happening fast enough that life could depend on and prosper once again. Now, a scientist has taken it upon himself to see just how fortunate we are that the Earth has survived this long without life being completely carved out, and the very interesting data.
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As Phil Plait de SYFY wire reports, the test is the subject of a new paper published in Communications Earth & Environment. In the paper, researcher Toby Tyrrell explains that living on Earth for three or four billion years was inspired by his desire to run a ton of symbols and see how lucky the Earth is.
The Earth’s climate has been continuously inhabited for 3 or 4 billion years. This gives rise to a puzzle (the ‘residence problem’) as it seems that loss of residence was more likely. Sunlight has increased by 30% over this period, which, if not damaged, would have caused sterility. Moreover, the Earth’s climate is delicately balanced, which could drop to deep freezing conditions within as little as 1 million years. Here I present results from a modern simulation in which thousands of planets have been randomly assigned to climate. Each planetary condition was tested to see if it was still capable of living over 3 billion years. The prevailing view only affects the Earth’s expanded potential to sustainability mechanisms. The simulation results shown here indicate instead that opportunity also plays a role in residential outcomes. Thus the permanent permanence of the Earth seemed to be a contingent rather than an inevitable consequence.
Tyrrell assigned mathematical values to the 100,000 significant planets he designed. The climate of each planet was randomized by that of Earth-like feedback loops – too much CO2 would cause the Earth to overheat, emit even more CO2, etc. – and others would have different variations. The climates were not similar, but the values representing the variables were specified and then followed while each planet was simulated 100 times.
Temperatures per planet were monitored for 3 billion (significant) years. Out of the sheer number of planets imagined, only one planet survived in 100 symbols. Other planets still lived in some symbolic orbits but others did not, but only 9% of the planets lived in at least one 3-billion-year run.
Needless to say, the fact that the Earth has sustained itself through asteroid effects, rapid cooling, and perhaps even a supervolcano explosion or two is very fortunate. If any of these events had completely wiped you out, I wouldn’t be here writing this, and you wouldn’t be reading it.
Mike Wehner has been reporting on technology and video games for the past decade, covering breaking news and trends in VR, wearables, smartphones, and the future of tech. Mike was most recently a Tech Editor at The Daily Dot, and has appeared in USA Today, Time.com, and in countless web and print outlets. He loves to report second only to his game thesis.