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originally posted by: Blue_Jay33
a reply to: Christosterone
You make some good points, but the points in the links stand as well.
A logical person without bias after reading those articles would give it a 50/50 chance, since were almost all biased, most of us have polarized percentage wise to a certain perspective, for me it's 99/1, that the earth and it's inhabitant is unique in the universe.
It is common for us to gravitate towards what we personally believe, so naturally I am going to give the Fermi Paradox and the Rare Earth Hypothesis more weight in my perspective than the Drake Equation.
originally posted by: Blue_Jay33
Why do I say that ?
If you read the "Rare Earth Hypothesis" with the "Fermi Paradox", you could come to that conclusion.
Rare Earth Hypothesis
Now we are all biased in one way or another based on our previous education and personal belief system.
For example I do believe there are Aliens strictly by definition but they don't have physical bodies, they don't live on any planet, and they live in a spiritual dimension, different from our physical one. Some are good and some are bad, you can probably figure out who I am talking about here, but that is a different topic.
But what I find fascinating is that some of those that believe that life can just spontaneously create itself, also seem to think, it's such a rare event that it is possible this is the only planet it might have occurred on.
This is brought out in "The Great Filter"
The Great Filter
On 4 November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of sun-like stars and red dwarf stars within the Milky Way Galaxy. 11 billion of these estimated planets may be orbiting sun-like stars.
It’s a big universe, but it’s full of small planets.
Astronomers announced on Tuesday that they had found eight new planets orbiting their stars at distances compatible with liquid water, bringing the total number of potentially habitable planets in the just-right “Goldilocks” zone to a dozen or two, depending on how the habitable zone of a star is defined.
---As we don't know what it is, we'll name it by borrowing the name directly from the Vatica, so that we won't go wrong.
If you read last editions of the “Lexicon Recentis Latinitatis”, published by the “:Liberia Editrice Vatican” where they insert the latin neologisms, you'll find that the Vatican inserted “navis sideralis”, which means “starship” They inserted “areia navis”, thus “airship”, they inserted “aireus viator”, that is “astronaut” and they inserted an acronym, “R.I.V” which means: res inexplicatae volantes”, that is UFO's.
The history of life on Earth began about 3.8 billion years ago,
initially with single-celled prokaryotic cells, such as bacteria.
Multicellular life evolved over a billion years later
and it's only in the last 570 million years that the kind of life forms we are familiar with began to evolve,
starting with arthropods,
followed by fish 530 million years ago (Ma),
land plants 475Ma and forests 385Ma.
Mammals didn't evolve until 200Ma and our own species,
Homo sapiens, only 200,000 years ago.
So humans have been around for a mere 0.004% of the Earth's history