Can we reason physics without causality?

In this article published in aeon, Mathias Frisch discusses role of causality in shaping our knowledge.

“…In short, a working knowledge of the way in which causes and effects relate to one another seems indispensable to our ability to make our way in the world. Yet there is a long and venerable tradition in philosophy, dating back at least to David Hume in the 18th century, that finds the notions of causality to be dubious. And that might be putting it kindly.

Hume argued that when we seek causal relations, we can never discover the real power; the, as it were, metaphysical glue that binds events together. All we are able to see are regularities – the ‘constant conjunction’ of certain sorts of observation. …Which is not to say that he was ignorant of the central importance of causal reasoning…  Causal reasoning was somehow both indispensable and illegitimate. We appear to have a dilemma.

… causes seemed too vague for a mathematically precise science. If you can’t observe them, how can you measure them? If you can’t measure them, how can you put them in your equations? Second, causality has a definite direction in time: causes have to happen before their effects. Yet the basic laws of physics (as distinct from such higher-level statistical generalisations as the laws of thermodynamics) appear to be time-symmetric…

Neo-Russellians in the 21st century express their rejection of causes …

This is all very puzzling. Is it OK to think in terms of causes or not? If so, why, given the apparent hostility to causes in the underlying laws? And if not, why does it seem to work so well?” read more

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