Pushing back the evidence of life implies one of the following is true.
1) Life (abiogenesis) is easy to get started and the Universe is full of life.
Well, it shows that it is liklier easier than expected. If it took only a 300 million years to start here then the best guess at the mode is of course 300 million years, say down from 500 million.
That of course implies that the window for life to evolve is likely shorter than we previously expected and naturally the number of places with a short window must be greater than or equal to the number of places with a longer window (in any remotely statistically sane universe, greater).
As the minimum window shortens, the number of opportunities for life to get started expands.
I don't think that proves the universe is full of life.
2) It was an extremely rare event for life to start on Earth.
I don't see how it implies that. We don't know precisely how rare the event was but as the earliest point moves back, the event looks less rare than before.
I see things differently. I believe you are saying that since the time period is shorter, the probability for life must be greater. (Correct me if I am wrong.) I start with a fixed (but unknown) small probability. Then by shortening the time period one makes it less likely life would form, because there are less cases where the needed ideal conditions exist for life to form.
3) Life started somewhere else and ended up on Earth.
Not really sure how it implies that. No matter what the distribution of life seeds arriving from outside, the narrower the window, the smaller chance life had to arrive from the outside. So it implies this option is less likely, but not by how much.
4) Life had outside help in getting started.
You've just deferred the problem, though to whatever gave rise to the outside helper.
i.e. a supernatural event.
Possibly, but the probability increases from something minute to something marginally less minute. We've never seen any evidence of anything supernatural existing that's held up to scrutiny, so the chance of supernatural things existing is very small at this point.
Using that fixed probability and the shorten time period, I see the need to look for other opportunities, such as panspermia or a purposeful outside intervention (which may be a supernatural intervention). Personally I think there are enough stories of the supernatural miracles that you can not discount them. (One example is the rigorous process the Catholic Church goes through to verify miracles in their sainthood process. They have had atheists look at the evidence of a miracle to try to disprove it.)
Moonchild's proposal involves creating a new browser from scratch, in a so-called "re-forking" operation, where the Pale Moon devs take a newer version of Firefox and rebuild Pale Moon on top of that.
They are not building it from scratch. They will use a newer version of Firefox as a starting point. It is "re-forking". It is likely they will not use the latest version since they want to keep tab groups. Though it will be new code when compared to the old Palemoon.
We are far apart, but I would hazard a guess that the Objectivism of Ayn Rand is more a minority viewpoint than my Christianity (which is not the moralistic legalism of many Americans). Maybe I am wrong. Both are views are minority viewpoints today, though on the topic of right and wrong I think most people would agree with my thinking because of the past influence of Christianity in Western World. I don't think objective selfishness will bring about world peace. I think altruism could if we could not be selfish, but selfishness is part of our nature and so it is a nonstarter for us. As I see it, the problem is I desire something; I then rationalize why I should have it; and then I take it. That does not bring about peace. That rationalization is flawed because I can not guarantee that my reason will be impartial and perfect. I am not certain if it ever can be.
Note from the book you recommended, I made an assumption that you follow the teachings of Ayn Rand. Correct me if I am wrong.
I believe there is a solution to our selfish brokenness. We can not fix ourselves but God can. God loves each and every one of us. He desires that we would all be fixed without turning us into little robots. Because of what Jesus has done for us, we can have new lives and live in love. Though we are not yet perfect, you can see many people around the world, who follow Jesus, are working to make things right. Followers of Jesus are in the process of being fixed themselves. We, followers, are not there yet. I know that I am a better and more loving person today than who I was 20 years ago. I am still broken but God is at work in me making me better. That is what I have experienced.
You scratch my tape, and I'll scratch yours.