Scientific American: Appears Earth is Special After All
Posted: Sat Feb 20, 2016 7:37 am
Exoplanet Census Suggests Earth Is Special after All - ScientificAmerican
http://www.scientificamerican.com/artic ... after-all/
So what does this "prove"? Only this: that based on our current understanding of the laws of physics, that we have no evidentiary basis on which to claim that there is anything like us in the universe, and that our current understanding suggests that the evidentiary basis warrants the opposite claim. And if the question is what we are warranted in claiming, I think our non-theist friends have some 'splain ta dooo.
http://www.scientificamerican.com/artic ... after-all/
- The scientists also have similar concerns about the galactic and cosmological inputs of their model but nonetheless they suspect that their final numbers are accurate to within an order of magnitude. With the estimated errors taken into account, the researchers conclude that Earth stands as a mild violation of the Copernican principle. Our pale blue dot might just be special after all. “It's not too much of a fluke that we could arise in a galaxy like the Milky Way, but nevertheless, it's just enough to make you think twice about it,” says Jay Olson from Boise State University, who was not involved in the study. Both he and Zackrisson think the Copernican principle could be saved by some unknown caveat to the findings. “Whenever you find something that sticks out…” Zackrisson says, “…that means that either we are the result of a very improbable lottery draw or we don’t understand how the lottery works.”
But Max Tegmark from the Massachusetts Institute of Technology, who also was not part of the research, thinks Earth is a colossal violation of the Copernican principle—not because of its location but because of its young age. “If you have these civilizations that had a 3.5-billion-year head start on us, why haven't they colonized our galaxy?” asks Tegmark. “To me, the most likely explanation is that if the planets are a dime a dozen, then highly intelligent life evolves only rarely.” So should we feel insignificant? Should we be reduced to near nothingness? Not at all, he says. “It might be that one day in the distant future much of our universe will be teeming with life because of what we did here.”
So what does this "prove"? Only this: that based on our current understanding of the laws of physics, that we have no evidentiary basis on which to claim that there is anything like us in the universe, and that our current understanding suggests that the evidentiary basis warrants the opposite claim. And if the question is what we are warranted in claiming, I think our non-theist friends have some 'splain ta dooo.