According to the bible, God created Adam and Eve about 6000 years ago...Lets think about some maths:
Two people multiplying to 6.5 billion in 6000 years. Ignoring the whole flood thing, how many children would eve had needed to give birth to to allow for both the genetic variation and the current population of the planet?
Has anyone ever thought about this before? I might attempt the math myself sometime if no one has.
This would only be a math problem if you believed that the earth is 6000 years old.
The human population did indeed bottleneck several thousand years ago, according to our genetic diversity, exactly. Not to two individuals obviously, but nonetheless. Trying to mathematicise genetics is not very useful as mutations leading to divergent evolution do not obey any mathematical imperatives. Some periods of history have more frequent mutations, other periods less frequent mutations. Some resultant mutations experience less isolation, some more. Genetics, nothwithstanding Dawkins, is not a mathematical endeavour :)