I know the term ascent is not the same as descent. But ascent seems more applicable unless you want to say that the first cell descends.
If you want to be understood, use descent for descendants, who descended from LUCA with modification.
the LUCA (Last Universal Common Ancestor) is said to be: ": A hypothesized single-celled organism that lived between 3–4 billion years ago and is the ancestor of all living things on earth." So no matter, it's a hypothesis. A single-celled organism that lived a while ago
Yes, but that is more than a hypothesis now. The evidence for it is overwhelming and sufficient to say that that hypothesis is correct beyond reasonable doubt.
You take shelter in words like hypothesis and speculation, but forget how much more others know than you about the science you reject.
I believed everything I was taught in school about evolution. No questions. I was an A student, not that it matters in this particular context. Nevertheless I recited the lessons well.
If that's true - if you ever received an A in a course on evolution - then you've forgotten most of the science you learned.
Did you think about any of the Dunning-Kruger material I presented to you? Did you understand it? Do you know why I posted it?
There are, imo, big questions regarding the theory of evolution.
But not the questions biologists have.
The theory works as it is, although additions may need to be made in the future as they have in the past with the addition of modern genetics and recognizing that punctuated equilibrium occurs.
But neither of those upend the basic ideas of Darwin about a LUCA evolving into the tree of life we see today through natural selection applied to genetic variations in populations over generations through geologic time. That appears to be here to stay.
The remaining work is going to be identifying and specifying the anatomy and biochemistry of the LUCA if possible, and to elucidate specific pathways, especially the one leading to man, which means doing the same for the last man-chimp common ancestor and identifying which of its descendants in the branch that led to man are ancestors and which were branches that died out without leaving additional descendants (aunts, uncles, and cousins if you will).
Eventually I began to think God did not exist, but still did not question the theory of evolution. But then things changed in my life.
Me, too, but in the other direction. I could see that the religion was false, and instead of picking another one, returned to atheistic humanism, although I didn't know to call it that at the time.