Originally Posted by
WillBrink
As we have only one example (Earth) to look at, it's currently impossible to calculate with any reasonable accuracy at all as to the mathematical likelihood of "...life spontaneously forming" or otherwise and anything else is hypothesis (read mental masturbation) and biased. By all accounts however, the shear numbers we are working with suggests it's mathematically improbable that life does not exist other than earth, and that's not disputed by anyone in the field really. Whether that lift has ever visited us, is a completely different issue/topic.
Just in our galaxy, we have at least 250 billion stars. With exoplanet discoveries, there are estimated to be at least 100 billion planets. Low end figures as more planets are being discovered day in and day out. I'd be surprised if that number isn't in the trillions.
It's estimated to be at least 200 billion galaxies, maybe that number is in the trillions as astronomers are upping that number all the time.
The number of possible planets in the known universe is too absurd to even type out. I'd dare say the odds are greatly in favor of planets with life supporting potential out there.
Experience is a cruel teacher, gives the exam first and then the lesson.
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