Gordon R
Department of Radiology, University of Manitoba, Health Sciences Centre, Winnipeg, Canada.
Riv Biol. 2000 May-Aug;93(2):349-56.
Artificial life research begins from the premise that Alife subsumes real life. A criterion for emergence in Alife has been formulated that, however, excludes real life and postulates the need for a real life Designer and an Observer. This in effect nullifies the premise of Alife and takes us back to the argument for God from design of Bishop Paley in 1802. An alternative is to realize that Alife could include two properties: simulated organisms that both design themselves and are the observers. Self-design can come about via evolution in a population of mating organisms, especially via mutations that are gene or higher order duplications. Duplications permit novelty while retaining previously attained functions. The ability to observe can itself evolve, if its construction process evolves. This may now be possible to simulate, if new paradigms for embryogenesis, such as positional information or differentiation waves, prove accurate, or at least sufficiently robust to construct a wide diversity of observational abilities. The evolution of perception, however, may be limited by the physics available to the Alife organisms, which can come in three forms: simulated physics, real physics accessible to robots, or "Cyberspace physics".
人工生命研究始于这样一个前提,即人工生命包含现实生命。然而,已经制定了一个人工生命中涌现现象的标准,该标准排除了现实生命,并假定需要一个现实生命设计者和一个观察者。这实际上使人工生命的前提无效,并使我们回到了1802年主教佩利从设计角度论证上帝存在的观点。另一种选择是认识到人工生命可以包括两个属性:既能自我设计又能作为观察者的模拟生物体。自我设计可以通过有性繁殖生物群体中的进化实现,特别是通过基因或更高阶重复的突变。重复在保留先前获得的功能的同时允许产生新特性。如果观察能力的构建过程不断进化,那么观察能力本身也可以进化。如果胚胎发生的新范式,如位置信息或分化波,被证明是准确的,或者至少足够强大以构建各种各样的观察能力,那么现在就有可能进行模拟。然而,感知的进化可能会受到人工生命生物体所具备的物理条件的限制,这些物理条件有三种形式:模拟物理、机器人可接触到的现实物理或“网络空间物理”。