Alcor and the old L5 Society, as well as profiles of Eric Drexler (of nanotechnology fame), Keith Henson (the impresario who co-founded L5 and was involved in many other projects), Jim Bennett (best known in political circles for writing about the Anglosphere, but deeply involved in the private-space movement), Ralph Merkle (cryonics and nanotech), Dave Criswell (dabbler in distant-future space speculations), Hans Moravec (known for robotics and posthumanism), Robert Ettinger (the father of cryonics), and many others. Regis, who describes himself as a “half-baked philosophy professor,” writes with a wit and verve that suggests the influence of Tom Wolfe — indeed, the book’s first chapter, describing rocketeer Bob Truax’s cooperation with Evel Knievel, could have appeared in the pages of The Right Stuff — and, like Wolfe, Regis is broadly sympathetic to his subjects even as he gently exposes their obsessions and foibles. He allows a few pages here and there for serious criticism of the futurists’ excesses, but not much.
One section of the book describes those researchers who believed in the 1980s that computerized simulations of life might actually have been alive. Explaining the thinking of one such researcher, Regis writes:
So if computer programs could do all these things — if they could replicate, mutate, interact with an environment, and learn — then why couldn’t they be considered in some sense alive? Why, in fact, couldn’t a certain, specific bunch of programs be considered animals of a sort?... “I would not hestitate to say that a program can be ‘alive,’” [Dave Jefferson] wrote. “Whatever reasonable definition one gives of ‘life’ (e.g., an energetically open system that adapts to its environment and produces variant copies of itself), there will be programs that satisfy the definition. Any claim that a program cannot be alive reflects either too narrow a definition of ‘life,’ or too impoverished a vision of the richness and variety of computation.... I would NOT claim that the Foxes, Rabbits, and Grass [in his programs] are alive at the individual level.... But the population of artificial rabbits surely exhibits all of the qualities of a living population. It grows, adapts, reproduces, and evolves. I can see no reason to deny that this population of artificial rabbits is alive at that level of organization.” [pages 199 and 204]
Jefferson was not alone; Regis describes several other researchers, including a goodly number of the participants in a big 1987 conference on the subject of artificial life at Los Alamos, who believed that their programs were, in some important sense, alive. You might consider that a funny contention since the programs under discussion were rather less advanced than are some free screensavers today. But many researchers continue to make the same claims today — in fact, the study of this kind of “artificial life” has become an accepted subfield of biological research. A couple of years ago, our contributing editor Steve Talbott explained and critiqued this line of thought in the pages of The New Atlantis:
The digital organism enthusiasts certainly think they are talking about something of real substance. The most direct conclusion to draw is that they have simply reified in their minds a set of computations and data structures. Having calculated certain ideal relationships expressed in program logic, they allow these relationships to condense, specter-like, into dim, vaguely imagined physical objects—objects that are, as a result, gratifyingly well-behaved in a logical sense. They then herald these ghostly compactions of logic as powerful demonstrations of how actual physical organisms evolve in obedience to the now perfectly displayed logic of their evolution.
There is something stunningly backward and tautological in all this. What these researchers are really doing is exploring certain possibilities of mathematical and algorithmic logic. It’s a legitimate thing to do. Throughout the history of science the elaboration of mathematical formulae has often led, at least in the physical sciences, to subsequent discovery of application for these formulae. But this doesn’t alter an obvious truth: the discovery always needs to be made, and it can be made only through observation of the world. Many of those who speak about artificial life seem strikingly casual about the role of observation.
As always with Steve Talbott, the entire essay is well worth reading. So, too, is his subsequent exchange of letters with one of this field’s leading proponents.