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Discuss the probability of intelligent life existing elsewhere in the…
Discuss the probability of intelligent life existing elsewhere in the universe.
Space-biology
20% of the known universe is possibly habitable and could have water. This means there is a 20% chance for life to be on one of those planets, that is not necessarily the case with intelligence
Fermi Paradox
If there was intelligent life why haven't they contacted us?
#
There could be intelligent life, but that doesn't mean it has evolved or adapted to communicate. Also it's survival of the fittest not the smartest
Drake Equation
There is a whole equation for estimating the odds of finding life that communicate created by Frank Drake, who helped in founding SETI(Search for Extra-Terrestrial Intelligence)
Adam Frank and Woodruff Sullivan tweaked the equation to not include the length of time alien civilizations lasted.
References
Articles
http://www.hawking.org.uk/life-in-the-universe.html
http://www.space.com/20155-hunting-intelligent-aliens-extreme-seti.html
http://www.space.com/32793-intelligent-alien-life-probability-high.html
http://theconversation.com/intelligent-life-in-the-universe-phone-home-dammit-41797
Another possibility is that the ETI wiped themselves out before they found the need or the curiosity to communicate with other planets
Chance of other intelligent life existing is 1 in 10,000,000,000,000,000,000,000. Earth is the 1 in 10 Billion Trillion
Xenomorph
Humanoid
Humans are narrow in their thinking that aliens would have to be humanoid or bipedal or have a large brain. These characteristics don't define intelligence. Intelligence is "the ability to acquire and apply knowledge and skills". This isn't predominantly defined by the size of the brain or if they have similar adaptations as humans.
Entropic Doom
2nd Law Of Thermodynamics
Everything will eventually reach null.
This means that eventually all life will cease to exist because the law states that all energy will disperse and no life will exist once the thermal equilibrium has reached
Anthropic Principle
The only reason why we are here and asking these questions is because a certain set of events and things happened that lead to our sapient form
Same applies for aliens there is nothing which should cause them to become sapient and so it would never happen, also certain key events like the wiping out of the dominant species to make way for the new species(Errant Asteroid/Dinosaur Wipeout)
