<< Specially thanks to PhilVaz for all those links!! I will read them all and get back to you to explain the parts I don’t understand >>
Oh I don’t know if I can explain all that stuff. I was just pointing to papers and simulations I know that have modeled evolution mathematically. Of course there is also Richard Dawkins classic computer program written in Basic and Pascal from
The Blind Watchmaker – known as the
"Weasel" program (wikipedia article), see also his
"Biomorphs" program. These are crude attempts at “evolution simulation.”
In the Weasel program, the phrase WDLMNLT DTJBKWIRZREZLMQCO P becomes METHINKS IT IS LIKE A WEASEL (from Shakespeare’s
Hamlet) in about 40+ generations. From Dawkins:
“The exact time taken by the computer to reach the target doesn’t matter. If you want to know, it completed the whole exercise for me, the first time, while I was out to lunch. It took about half an hour. (Computer enthusiasts may think this unduly slow. The reason is that the program was written in BASIC, a sort of computer baby-talk. When I rewrote it in Pascal, it took 11 seconds.) Computers are a bit faster at this kind of thing than monkeys, but the difference really isn’t significant. What matters is the difference between the time taken by cumulative selection, and the time which the same computer, working flat out at the same rate, would take to reach the target phrase if it were forced to use the other procedure of single-step selection: about a million million million million million years. This is more than a million million million times as long as the universe has so far existed.” (Dawkins from
The Blind Watchmaker)
So computers and math have been used to model evolution and natural selection. People have critiqued this by suggesting it is the intelligence of the programmer driving the evolution, but actually the algorithms themselves account for some “randomness” so it does mimic the random mutation part.
The
AVIDA "Digital Life Platform" mentioned earlier (paper by Lenski, Pennock, et al) is lot more sophisticated.
And on the same topic, there is the new computer game just released by EA:
SPORE
Phil P