Daddy4UdderSlut -> RE: God, Darwin, and Kansas (8/10/2006 8:41:05 AM)
|
Persons who make assertions like "The complexity is too great to have been arrived at by chance".... simply don't understand what evolution really is, and "calculations" that show tiny likelihoods are correct algebraically, they simply don't map onto the physical reality of how evolution works. For just one example of a so-called "genetic algorithm" working before your eyes to solve a problem, see: http://www.missouri.edu/~clj4hf/TravellingApplet.html Now, critics may say, so what, that's not a person. First of all, genetic algorithms aren't used to "prove evolution of humans", they are used to solve difficult optimization problems. For example here, the GA finds a good solution in just 50,000 evaluations, while there are 9 trillion possiblities, and in fact the good solutions only constitute a 1/20million fraction of the possible solutions... yet, it works. The point is, GAs work, and they work well. Although they are stochastic in nature (rely on random changes), they work dramatically better than pure chance selection. The reason is that the final answer is not plucked out in the first try - it is arrived at by iterative improvements in trial solutions that reflect the best examples so far. Deleterious mutations occur all over, and yet, it still works - that's because not every change needs to be beneficial, just as I explained in a prior post. There are tons of such tutorial applets on the web. If you look at more of them, you should understand something else: the GA doesn't necessarily converge on the optimal solution in a finite number of cycles. In other words, the "answer" at any given time is not perfect. That likewise corresponds to known biological organisms, that are absolutely riddled with physiological problems, including humans - we are neither perfect, not "completed". We never will be, we are just a work in progress, muddling along in nature.
|
|
|
|