Kampourakis Kostas
Section of Biology and IUFE, University of Geneva, Geneva, Switzerland.
Evolution (N Y). 2020;13(1):1. doi: 10.1186/s12052-019-0116-z. Epub 2020 Jan 9.
Teleology, explaining the existence of a feature on the basis of what it does, is usually considered as an obstacle or misconception in evolution education. Researchers often use the adjective "teleological" to refer to students' misconceptions about purpose and design in nature. However, this can be misleading. In this essay, I explain that teleology is an inherent feature of explanations based on natural selection and that, therefore, teleological explanations are not inherently wrong. The problem we might rather address in evolution education is not teleology per se but the underlying "design stance". With this I do not refer to creationism/intelligent design, and to the inference to a creator from the observation of the apparent design in nature (often described as the argument from design). Rather, the design stance refers to the intuitive perception of design in nature in the first place, which seems to be prevalent and independent from religiosity in young ages. What matters in evolution education is not whether an explanation is teleological but rather the underlying consequence etiology: whether a trait whose presence is explained in teleological terms exists because of its selection for its positive consequences for its bearers, or because it was intentionally designed, or simply needed, for this purpose. In the former case, the respective teleological explanation is scientifically legitimate, whereas in the latter case it is not. What then should be investigated in evolution education is not whether students provide teleological explanations, but which consequence etiologies these explanations rely upon. Addressing the design stance underlying students' teleological explanations could be a main aim of evolution education.
目的论,即依据某一特征的功能来解释其存在,通常被视为进化教育中的一个障碍或误解。研究人员常常用“目的论的”这个形容词来指代学生对自然中目的和设计的误解。然而,这可能会产生误导。在本文中,我将解释目的论是基于自然选择的解释所固有的特征,因此,目的论解释本身并非错误的。在进化教育中我们或许更应该关注的问题并非目的论本身,而是其背后的“设计立场”。我这里所说的并非神创论/智能设计论,也不是从对自然中明显设计的观察推断出有一个创造者(常被描述为设计论证)。相反,设计立场首先指的是对自然中设计的直观感知,这种感知在年轻人中似乎很普遍且与宗教信仰无关。在进化教育中重要的不是一种解释是否是目的论的,而是其背后的结果病因学:即一个用目的论术语解释其存在的特征是因为其对拥有者的积极后果而被选择存在,还是因为它是为了这个目的而被有意设计或仅仅是被需要。在前一种情况下,相应的目的论解释在科学上是合理的,而在后一种情况下则不然。那么在进化教育中应该研究的不是学生是否提供了目的论解释,而是这些解释所依赖的是哪种结果病因学。解决学生目的论解释背后的设计立场可能是进化教育的一个主要目标。