Which is the Most Believable Theory about How We Came to Be?
Most scientists agree that life went through a period when RNA was the "chief" molecule, guiding life through its evolving stages. According to this "RNA World" hypothesis, RNA was the core molecule for primitive life and only took a backseat when DNA and proteins developed.
Others believe that life arose from molecules able to exist in extreme conditions that were travelling through space within an asteroid. This theory is called Panspermia and has different variations holding the same idea that life did not necessarily originate on Earth but possibly from outer space.
As the natural process of evolution over billions of years ago eventually led to the rise of primates, from that lineage, eventually ”modern human” evolved. It all started with a cell dividing and getting lost in distant pre-history. But the fact is that every new living creature begins as a single cell and grows from there. That fact makes it nearly impossible to point out the first ''modern human'' since it's hard to track down even the source of such a mutation.
Rather if we assume that it was another miraculous event that we came to exist as such highly evolved from the other species, then we start to believe in theories of this kind such as Creationism, Intelligent Design and so on. Most of the other theories on this matter are more or less philosophically based on assumptions with or without leading evidence.
Can you expand your mind beyond the common boundaries?
Just as recently as last year, an influential and leading physicist at Harvard University proposed a new theory to why humans exist and where we all came from.
Professor Lisa Randall, said that the extinction of dinosaurs, which paved the way for our species' emergence, is associated with dark matter. She describes a hypothetical dark disc of closely-packed dark matter within the Galaxy that may have been the reason why humans had emerged.
Paleontologists agree that a celestial body nine miles long struck the Earth more than 66 million years ago. The impact that was made wiped out approximately 75 percent of the species living throughout Earth, including dinosaurs. Small primates were among the survivors, they said. These primates grew larger, diversified, developed larger brains and started to walk on two legs. The event that killed the dinosaurs and led to the emergence of humans was not entirely based on luck or chance.
In her book, Randall describes a dark, pancake-shaped patty of densely packed dark matter within our galaxy that could be responsible for our emergence as a species. “If true, the additional wrinkle presented in this book would mean that not only was dark matter responsible for irrevocably changing our world, but also that some of it played a crucial role in allowing our existence.” Randall stated.
What defines us is more or less a wonder?
The most common theory of how humans became what they are today is of course evolution through certain primates that progressed ever so slowly toward the modern humans we know today. But could it be that simple having in mind that we are truly something without a certain analogue.
Humans are distinguishable with not only their visible characteristics. We happen to have imagination that has guided us throughout all our existence and probably made us what we are today. We often lacked foresight yet we never stopped creating with our thoughts. You must admit here lies the possibility of the miracle of existence itself, no matter what religion you believe in or what your thoughts are they serve you in creating something beyond the ordinary nature around us.
And so if theories of philosophers and ideas of different religions are somehow combined we could conclude one united theory that we species are divergent (in a sense we hold different genetic codes) as much as alike, where we share one giant home of ours and whether our genuine molecules come from space or not, we are here now and there isn't a more natural thing to do than make this ''giant home'' a better place to live in.