LIIA
Well-Known Member
No.
LUCA is just the common ancestor of all living things today.
That doesn't mean that that population/species was "first life".
LUCA could be a species that lived 2 billion years ago among many other species of which the branches died out while life itself is at least 3.8 billion years old.
It's like mitochondrial eve. All women alive today are descendants of that individual. But mitochondrial eve was NOT the "first woman", nor was she the only woman alive at that time.
I'm so sorry if you can't comprehend this simple thing.
No, LUCA’s age is assumed to be around 4 billion years ago, but it’s really irrelevant to my point. Everything you mentioned is merely unevidenced meaningless speculation. I’m not interested in arguing about irrelevant details of a fairytale, my concern is the underlying logic/concept.
Again, the ToE is not concerned about explaining the first life, only the diversity of life but without life, there is no evolution; Abiogenesis is supposed to explain the emergence of first life (first self-sustaining complex living system allegedly capable of Darwinian evolution) which is absolutely necessary before any evolutionary process through mutation/selection would be possible.
The name that is given to the alleged first life is neither my concern nor I am interested in arguing about irrelevant details. The point is, Abiogenesis must explain the first life, which is a necessary prerequisite before evolution. If the first life is not explained or not possible, no evolution is possible.
So?
Without mass / matter there is no gravity.
But we don't need to know the origin of mass or matter to study gravity.
Gravity is a property of space-time, which comes into action when matter interacts with it. According to the General Theory Of Relativity, Gravity is the warping of space-time when it interacts with a dense mass. After interaction of matter and space-time the space-time curvature gives birth to the Gravity.
Gravity as a phenomenon can be explained by the interaction of both space-time and matter. It’s a different context.
The point is that many are under the false impression that the ToE explains life and they fail to understand that without life to begin with, there is no possible evolution. The ToE merely shifts the problem of life to the first life and leaves it to Abiogenesis to provide an explanation, but it never did. The fact remains that the problem of life was never explained. neither by the ToE nor by Abiogenesis.
I feel an argument from complexity (aka argument from ignorance / awe) coming up.
Is that where this is going?
Not really. The concern as explained in # 2575 is the oversimplification/wishful thinking of many as they view the problem of Abiogenesis while failing to understand its multiple levels of escalated complexity. None of the numerous attempts led to any remotely possible self-sustainable chemistries and pathways that are capable of chemical evolution. See # 1850 & #2484.
Evolution happened, happens and will continue to happen regardless of current hypothesis of abiogenesis being correct or not.
The theory of evolution doesn't fall or stand with abiogenesis hypothesis being accurate or false.
Not true, it's always an adaptation process through directed mutation, it's never a random evolutionary process.