So The Universe is ~ 13.8 Billion Years Old.
Our Milky Way Galaxy is ~ 13.6B.
The Earth is ~ 5.4B
And The Birth-of-Life (First Single-Cell Organism) is ~ 3.2B .
So, It Takes A Very Very Long and Very Very Slow Process To Develop Intelligent Life
To The Point That It Can Use Radio Communication And Do Interplanetary Travel.
Intelligent Life That Can Only Communicate Out After ~ 3.2 Billion Years.
Let’s Assume Alien Life Do Exist and Compare Their Birth-of-Life(BoL) To Ours.
Case 1. If Their BoL Is Same As Ours. ~ 3.2B
Has Developed Intelligent Life, Civilization, Radio Comm, Interplanetary Travel.
Their Distance Could Be Many Many Light-Centuries Away.
Case 2. Their BoL Is More Recent Than Ours. ~ 2.2B
Has Developed Life, Albeit Intelligent Life Yet. No Civilization, Radio Comm, Interplanetary Travel.
Their Distance Could Be Many Many Light-Centuries Away.
Case 3. Their BoL Is More Older Than Ours. ~ 9.0B
Has Developed Intelligent Life, Civilization, Radio Comm, Interstellar Travel, Nuclear Fusion, Advanced Dream Technologies, Etc.
But Their Civilization Sunset’ed and Faded Away. Either By Supernova or Self-Destruction.
Like All Things, Civilization is Life And Life Starts, Blooms For a While, And Then Withers Away.
Their Distance Could Be Many Many Light-Centuries Away.
In All Cases, Their Distance Could Be Many Many Light-Centuries Away. And, We Have Been Only Using Radio Telescopes To Listen Out For the Past 60 years. As They Say, We Haven’t Been Listening For Long Enough Yet!
So, Keep On Listening. In The Right Place. In The Right Way (i.e. Right Method).
Maybe We Will Seed Life Elsewhere After A Nearby Supernova or Similar Event Hits Us.
And, Our Own Organic Debris of Life Will Scatter Across The Whole Galaxy.
We Are The Aliens Then! :) .
The Light-Century. A Lifetime Distance Away. By Light.
Zenni Optical!
Through Space 'n Time Beyond Which Our Life's Flame And Theirs Would Have Faded, Perished, And Gone Out. But, See The End For The Good News! Near-Light Time-Suspended Animation For Immortality If That's What You're Looking For.
For Now, I Propose An Astronomical Distance of Measurement More Personable, Meaningful, and Approachable Complementing The Common Light-Year, Relating and Pegging Time To Human Lifetime(s) Instead. One Light-Century Is The Distance That Light Travels For 100 Years Or A Human Lifetime To Get There. One Light-Century Away is 100 Light-Years Away. A Half Light-Century Away Is A Half-Lifetime/Half-Generation Away By Light. And 15 Light-Centuries Away Is The Distance That Light Travels For In 15 Human Lifetimes Or Generations To Get There. Vice Versa, The Light That Arrives We Receive From There Is Then 1500 Years Old Or 15 Human Generations Old.
A Light-Century Away. By The Time Our Radio 'Light' Message Has Been Traveling 'n Reaching Gets There, We Will Be Gone By Then. Our Life's Flame Has Extinguished and Gone Out. Vice Versa, By The Time Their Radio 'Light' Message Gets Here, Their Light Is 100 Years Old Or A Human Lifetime/Generation Old. Their Life's Flame Too Has Extinguished and Gone Out. If They Aren't Redwood Trees With 500+ Years Lifespan At Their End.
In Short, A Light-Century Distance of Separation Would Mean Life At Both Ends Will Have Perished and Be Gone By The Time Radio Communication Is Either Sent Or Received. We Would Want A Shorter Co-Existence Space-Time Window For Both Them And Us To Be In.
Now For The Good News! There Is Near-Light Time-Suspended Animation For Us. The Closest Thing To Immortality As Physically Possible. Just Travel At Near-Light Speed To 'Suspend' Time. When Time Comes To A Crawl, Albeit Stops, For You...
Now For The Primordial Soup!
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References:
Why Haven’t We Found Aliens Yet Theories
12 Intriguing Theories Humans Haven’t Found Alien Life Yet | LiveScience
12 Possible Reasons We Haven't Found Aliens | Space
Looking for LUCA, the Last Universal Common Ancestor
The James Webb Space Telescope Advanced Deep ExtraGalactic Survey (JADES)
(Is our universe trapped inside a black hole of a parent universe?
This James Webb Space Telescope discovery might blow your mind)
The $10 billion telescope, which began observing the cosmos [universe] in the Summer of 2022, has found that the vast majority of deep space and, thus the early galaxies it has so far observed, are rotating in the same direction. While around two-thirds of galaxies spin clockwise, the other third rotates counter-clockwise.
In a random universe, scientists would expect to find 50% of galaxies rotating one way, while the other 50% rotate the other way. This new research suggests there is a preferred direction for galactic rotation.
The observations of 263 galaxies that revealed this strangely coordinated cosmic dance was collected as part of the James Webb Space Telescope Advanced Deep Extragalactic Survey, or "JADES."
"I think that the simplest explanation of the rotating universe is the universe was born in a rotating black hole. Spacetime torsion provides the most natural mechanism that avoids a singularity in a black hole and instead creates a new, closed universe," Poplawski continued.
"A preferred axis in our universe, inherited by the axis of rotation of its parent black hole, might have influenced the rotation dynamics of galaxies, creating the observed clockwise-counterclockwise asymmetry.
"The discovery by the JWST that galaxies rotate in a preferred direction would support the theory of black holes creating new [baby] universes inside it [i.e. our 'baby' universe inside of a black hole of the parent universe], and I would be extremely excited if these findings are confirmed.
Why Haven’t We Found Aliens Yet Theories
Google AI Overview
There are many theories about why we haven't found aliens yet, including
the Fermi Paradox, the Great Filter, and the Rare Earth hypothesis.
Fermi Paradox:
The vastness of space and time makes it unlikely that we'll encounter
an alien civilization
Intelligent life may be rare or non-existent
Civilizations may only broadcast signals for a short time
We may not have the technology to detect aliens
The Great Filter:
A barrier prevents civilizations from developing/reaching the point of
interstellar travel or communication
This barrier could be due to self-destruction or other factors
Rare Earth hypothesis:
The conditions that led to the development of life on Earth are so unlikely
that it's almost impossible
Other Theories:
We haven't sampled enough of the galaxy
There's a universal limit to technological development
Habitable environments are difficult to maintain
We should be looking for machines, not little green men
The Search for Extra-Terrestrial Intelligence (SETI) is
an ongoing effort to listen for signals from space.
Why Aliens Haven't Been Found OR
Why Haven't We Found Aliens Yet
Google AI Overview:
The primary reason we haven't found aliens yet is likely due to the vast distances in space, making it incredibly difficult to detect signals from other civilizations,
even if they exist; this is often referred to as the "Fermi Paradox.".
Other potential reasons include:
Limited technology:
Our current methods for detecting alien life, like radio telescopes, may not be sensitive enough to pick up faint signals from distant planets, especially if they use communication methods we haven't considered.
Life may be rare:
Even though there are billions of stars, the conditions necessary for life to arise could be extremely specific, meaning intelligent life might be very uncommon.
No active communication:
Alien civilizations might not be actively broadcasting signals into space, making it hard to detect them unless we happen to be in the right place at the right time.
Short lifespan of civilizations:
A civilization might only exist for a brief period before destroying itself, limiting the window of opportunity to make contact.
Key points to consider:
The vastness of space:
Even if other intelligent life exists, the distances between stars are so vast that interstellar travel could be impractical.
The "Great Filter" hypothesis:
This theory suggests that there might be a significant hurdle in the evolution of intelligent life, preventing many species from reaching a technologically advanced stage.
Our limited search capabilities:
We are still in the early stages of searching for extraterrestrial life, and our technology is constantly improving.
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There are many possible reasons why we haven't found aliens yet, including:
The Fermi paradox: There are billions of Earth-like planets in our galaxy, but no aliens have visited us.
The great filter hypothesis: Life is common, but intelligent life is rare or difficult.
The universal limit to technological development: There is a limit to how advanced any intelligent species can become.
The vastness of space: The Milky Way alone is 100,000 light years across, so it could take a very long time for signals to travel between civilizations.
We haven't been looking long enough: We've only been searching for extraterrestrials since about 1960.
We're not looking in the right place: There are many different ways that lifeforms might send signals.
We haven't found the right method or way: We might need to try different methods and ways to communicate with other civilizations.
We're not interesting yet: We may be among the first creatures to arise in the Milky Way.
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