This is an engaging book written in a fictive dialogue form between four philosophers of science from different philosophical camps: one relativist, the second pragmatist, the third positivist and the last character realist. The last three characters gang up to corner the relativist throughout the book. Larry Lauden (b. 1941) the author of the book, himself a pragmatist philosopher of science, gives more voice in these dialogues to pragmatist side of the dialogues than the other three in criticising relativism.
They talk about progress (relativist denies it others defend it), theory-ladenness and underdetermination (it seems that all agree on theory-ladenness, underdetermination and fallibility but relativist argues that they lead to relativism while others argue they do not and even the claim that 'underdetermination leads to relativism' is self-undermining for relativist). They also discuss holism (the relativist defends it the other three deny it), standards of success and incommensurability. Even the relativist side of the dialogues denies the strong version of incommensurability according to which all concepts of a paradigm is untranslatable to another paradigm defending instead its weak version. The last topic they discuss is interests and the social determination of belief.
In the introduction Lauden laments the pervasiveness of relativism despite the fact that he considers it to be 'wrong-headed'. He also claims that relativism has no serious place among philosophers of science but it is still common among cultural philosophers such as Rorty and sociologists such as Winch (p. viii).
The book is written with the intention of being accessible to non-specialists. While it is mainly successful in keeping up with this intention sometimes the book laps into specialism full of jargons which makes the book inaccessible to the general reader. The differences between pragmatism, positivism and realism have only been touched upon here and there and there is only passing and short discussions between the positivist, pragmatist and realist regarding their own differences.
The arguments presented against relativism do not seem decisive. It is only in the last chapter discussing interests and the social determination of belief that arguments seem more irresistible if not decisive. For example, see this part in which the realist argues against the relativist on the issue of social constructivism argument raised by the relativist:
'if different scientists have radically different personal agendas and interests, as you claim they do, and if those agendas rather than shared cognitive rules are the determinants of belief in the scientific community, which you also claim, then it becomes utterly mysterious how strong consensus can arise in the scientic community.' (p. 153)
The main relativist philosophers quoted in the book are Rorty, Quine, Kuhn and Feyerabend. Feyerabend wrote a short review of the book (Isis, Vol. 83, No. 2 (Jun., 1992), pp. 367-368) accusing it of being old-fashioned, textually inaccurate and insensitive to the history of science.
Towards the very end of the discussion, the realist character of the dialogues neatly summarises the whole arguments against relativism discussed in the book:
'relativism is self-referentially incoherent, and to boot it is predicated on several dubious epistemological theses – for instance, incommensurability, holism, and radical underdetermination. The relativist supposes that fallibilism, which we all accept, entails that all beliefs are equally well- or ill-founded. Except his own, which he believes to be better-founded than ours!' (p. 169).