Here is a very good blog post talking about genetic mutation and why the genetic variation we see in humans today is far too great to have occurred in the short period of time that a literal biblical flood requires.
Now, I’ll be honest in that my understanding on genetics is such that I can’t make any serious contribution to the subject, either for or against. However, as a layman, the concepts discussed and the time periods required make sense and so I trust that what has been written is true.
I find it interesting that something so basic as the huge variety of human genetics and the time it takes for variations to appear, is such that it renders a literal interpretation of the bible impossible.
The most obvious place to start was evolution. My non-acceptance of evolution put me squarely in the minority of people I knew and it was now very important to me that I challenge my views fairly and adjust accordingly.
I had now pretty much come to accept that the age of the earth was much more than the ten thousand years (or thereabouts) that creationism would have us believe. The most obvious conclusion to this was that is the earth was actually very old, and my eyes had seen the evidence for this, then many other things that relied on a young earth must also be false.
I started off with listening to various science podcasts on the subject of evolution, I also subscribed to a few creationist podcasts to try and balance out the information I was getting.
The creationist podcasts subscriptions didn’t last long. To be blunt, they were awful, the science wasn’t convincing and they lacked technical detail. By contrast the evolutionary science podcasts overflowed with technical science and evidences. The more I listened the more I realised that evolution was true and that the special creation of humans simply could not have happened as described in Genesis.
Adam and Eve are now well and truly relegated from history and into myth, (https://confessionsofayec.wordpress.com/2011/06/05/the-problem-of-adam-and-eve/).
With the basic tenets of creationism gone; 7-day creation, Adam and Eve and Noah’s Flood, the question that remained was “What Next?”.
Well, that would be the story of Joseph and the Israelite Exodus under Moses, surely they can’t be false as well can they?