murphyweb wrote:
but do think that somehow our DNA is pre-programmed rather then darwin's theory that the only reason why i am sitting here typing is because of a billion coincidences worked out it my favour.
But even sticking within a few thousand years, the chances are really stacked against you sitting there typing.
What was the chance of your mother and father meeting in the first place? What was the chance of a single particular sperm cell amongst millions finding the egg, rather than any of the others? Then you have to consider how likely it was that your mother and father were born. etc.
Basically, even if you go back only a few generations, the chances of you being born are pretty infinitessimal.
Similarly, the chance of any one combination in the lottery winning is 1:13,983,816, almost negligible in reality to anyone just buying a single ticket - but, very often,
someone wins.
The chance of any specific outcome might be very small, but the chance of a
similar outcome might be quite reasonable and pretty likely to happen. Another example to consider is the particular arrangement of all the air molecules in the room where you are now. The chance against the current specific arrangement is probably trillions of trillions to one against (that particular arrangement will probably never happen again, ever), but the fact remains that it's happened, despite the huge odds against it.
If you ran evolution again from the beginning, humans almost certainly wouldn't exist. The specific circumstances have led to us, however, despite the huge odds against it.