In an earlier post (go here), I relayed to UD readers two programs that had been emailed to me by someone named Oxfordensis. After careful scrutiny, my colleagues and I at the Evolutionary Informatics Lab concluded that these are by far the best candidates that we have to date for Dawkins’s original WEASEL program(s) (as I note in the previous UD post, it appears that there were in fact two programs, one described by Dawkins in his book THE BLIND WATCHMAKER, the other appearing in his BBC video about the book). Are these in fact the original WEASELs? When I contacted Richard Dawkins to confirm their authenticity, he replied, in an email dated 9.21.09, “I cannot confirm that either of them is mine. They don’t look familiar to me, but it is a long time ago. I don’t see what more I can say.”
In that email, Dawkins rightly raised the question of these program’s provenance and the fact that UD had issued a reward for them. Yet the reward was so small (a mere book) that this hardly seems sufficient for someone to write these programs as a hoax. The question of provenance is more worrisome, but then again so is the failure of Dawkins to keep copies of the program, especially when they are of such historical interest in ongoing debates over evolution. Are, then, the programs listed in my previous post in fact the originals? Even if this question cannot be answered with iron-clad certainty, we submit that they deserve to be taken as originals. Why? Three reasons:
1. They are written in PASCAL and they compile in the PASCAL compilers available in the mid- to late-80s.
2. These programs were widely circulated at the time. Charles Thaxton informs me, in an email dated 8.27.09, “As for the Dawkins program, I picked up a copy in 1989 at Princeton from a physics grad student after my talk there.” Like Dawkins, he adds, “But Bill, I have no idea where it is.” Presumably, these programs are still out there on people’s computer memory (or floppy disks). So why can’t an anonymous person like Oxfordensis have the originals?
3. Their performance is precisely what we would expect given the historical record that we have of these programs.
This last point has been the main sticking point keeping critics from embracing these programs as the originals. As Wesley Elsberry put it to me in an email dated 9.21.09: “Putting mutation on a per-copy basis rather than per-base would be rather unlike the biology.” And yet, Dawkins does indeed seem to have made this non-biological assumption in programming his WEASELs. In what follows, I draw from my consultation with a programmer colleague: Read More ›