Tag Archives: moral realism

On Stephen Law on Scientism

scientism It’s good to see philosophers taking scientism seriously, and not just using the term as a bogey word. Massimo Pigliucci and Maarten Boudry are editing a forthcoming volume on scientism (Total Science, University of Chicago Press) and some of the essays are appearing on the internet.

I’ll discuss here the draft chapter by Stephen Law (Heythrop College, University of London) who writes, discussing the proper scope of science:


As a philosopher, you might expect me both to want to carve out some intellectual territory for philosophers to occupy, and also to resist the thought that philosophical questions and problems are either non-questions and non-problems or else questions that will be answered and problems that will be solved, if at all, through an application of the scientific method. I won’t disappoint. However, while I acknowledge that there are limits to science, I will argue these limits typically offer little comfort to religious, New Age, and other folk looking for ways to immunize their beliefs against scientific refutation.

As that last sentence suggests, science has been so successful in generating knowledge that it can be threatening to other beliefs. Do other belief systems have an independent validity, in domains of knowledge that are simply not the business of science, or can a scientific approach prevail in all domains? As Law says, the desire to limit science often originates from a desire to indulge beliefs that derive from wishful thinking, without feeling any need to supply science-grade evidence to back them up.

Law discusses Stephen Gould’s proposal of “non-overlapping magesteria” of knowledge, of which science would be only one. In contrast, scientism is the wholesale rejection of NOMA and the declaration that knowledge is a unified whole, and that the basic ways of finding things out that we refer to as “science” apply universally.

Let’s also be clear that scientism is not the claim that science can answer all questions, it’s the claim that there are no independent “ways of knowing” that can answer questions that science cannot. It is easy to think of questions that are meaningful but which we will never be able to answer (I’ve previously given some examples, including: What did Julius Caesar eat on the day three days before his eighth birthday, and did he stroke a dog on that day?).

Law is sympathetic to much of scientism and I won’t address the many parts of his chapter with which I agree. I’ll focus only on two areas where Law dissents from scientism: Continue reading

The evolutionary argument against moral realism

Having abandoned Divine Command Theory around the age of 12, when I realised that I was an atheist, I then read John Stuart Mill at the impressionable age of 14 and instantly became a utilitarian. I remained so well into adulthood; it seemed obvious that morality was a matter of objective wrong and right, and that utilitarianism — the greatest good of the greatest number — was the way to determine such facts.

Of course I also became aware of the unresolved problems with utilitarianism: there is no way to assess what is “good” except by subjective judgement, and there is no way to aggregate over sentient creatures (should a mouse count equally to a human?) except, again, by subjective judgement. Both of those rather clash with the desired objectivity of the scheme.

Periodically I would try to fix these flaws, but never succeeded. Such mulling led me to the realisation that I didn’t actually know what moral language actually meant. “It is morally right that you do X”, can be re-phrased as “you ought to do X”, but what do those mean? I realised that I didn’t know, and had been proceeding all this time on the basis that what they meant was intuitively obvious and so didn’t need analysis.

But that’s not good enough if we’re trying to solve meta-ethics and understand the very foundations of morality. And so, I eventually arrived at the realisation that the only sensible meaning that can be attached to the moral claim “you ought to do X” is that: at least one human, likely including the speaker, will dislike it if you do not do X. “It is morally right that you do X” then becomes a declaration that the speaker will approve of you doing X and disapprove of you not doing X. Continue reading