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The fact-value distinction is one of the most important problems of philosophy. The Scottish philosopher David Hume gave it its classical formulation: it is impossible to derive an ‘ought’ from an ‘is’. That is, it is impossible to establish any value amidst an ocean of facts.On the surface of it, Hume would seem to be unimpeachably right. The facts cannot tell us what to do. But here is a problem. Neither can value. While one cannot derive an ‘ought’ from an ‘is’, neither can one derive an ‘ought’ from an ‘ought’, as it were.
Take, as an example, a statement of fact: ‘We are ready to hoist the spinnaker.’ Such a statement gives us no idea as to whether we should hoist the spinnaker.
Yet we find no difference with a statement of value: ‘We ought now to hoist the spinnaker.’ Why ought we to? What gives us the authority to say so? We find that such a statement is quite adrift, and equally unable to tell us whether we should or not.
What, then, was Hume thinking when he wrote about ‘ought’?
It would seem to me that Hume made a lazy assumption, of the kind that philosophers fail to examine any further, on thinking that they have gained a special insight. The assumption would be something like this: that there is a certainty which lies in value which fact does not possess. Thus Hume equated value with a ground for our behaviour—if one should ever find it.
To put it another way, Hume’s fact-value distinction would seem to be a false dichotomy.
What is it, then, that fact and value have in common, that neither will deliver ‘value’—in the sense of a ground for our behaviour?
I would propose that the scope of both fact and value is too limited for either to deliver universal truth. Both statements of fact and statements of value exist in limited contexts, without being referenced to any fixed points except their own—while the question of certainty lies beyond this, in something which is far more expansive.
It may be easy to see, for instance, that I should hoist a spinnaker if I wish to win the race—and this I may state both as an ‘is’ and as an ‘ought’:
Given such and such conditions, the spinnaker will secure a win—alternatively, I ought to hoist the spinnaker to clinch it. In both cases, it would be true and compelling that I need a spinnaker—yet not if I should expand my horizon, to ask whether I should have entered this race at all.
How then might we reference statements to something broader than simple fact and value? An analogy might help.
I am in a boat on the ocean, to anchor a buoy. If I reference its position to the seaweed I see underneath it, or the birds which circle overhead, I have in this case an unstable reference. Or I may reference it to a spit of land that I see in the distance. This would seem to be more stable, though not completely so—the wind and the waves may change it. Or I may reference it to the stars—but even the stars will move.
Ideally, my buoy would be referenced to everything.
This may not be as absurd as it sounds. If the context is big enough—and if we should know just what kind of a context this should be—we may well be able to ground both fact and value.
If we reference everything to everything, there may be a way forward. While space does not allow me to explore this further here, readers may refer to a post in which I sketched some thoughts on how this might be done: How Shall We Re-Establish Ethics in Our Time?