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Atheism and Theism JJ Haldane - Common Sense Atheism

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126 J.J. <strong>Haldane</strong><br />

I have no wish to deny the phenomena <strong>and</strong> save ‘sufficiency’ by insisting<br />

that, after all, there must have been determinacy. Instead I claim that a cause<br />

need not be a sufficient condition in the sense presumed by determinism. There<br />

is a very natural <strong>and</strong> widely exercised way of thinking according to which a<br />

sufficient cause is a ‘cause enough’ <strong>and</strong> a sufficient explanation an ‘explanation<br />

enough’. In these terms the quantum events do have an explanation. For<br />

example, it may be a property of the experimental set-up that a certain percentage<br />

of emissions follow a given pattern. To observe this is not necessarily<br />

to confine oneself to a statistical description. Indeed, I take it that the point<br />

of a realist interpretation is to attribute a natural propensity to the system.<br />

Propensities are explanatory even when they are non-deterministic. If I say<br />

that an event occurred because of a reactive tendency I have answered the<br />

question ‘why?’ in a way that I have not if I say it just occurred. ‘Such things<br />

happen’ can be an empty response but it need not be, <strong>and</strong> will not, where the<br />

occurrence is attributed to well-established causal powers. A cause is a factor<br />

that makes something to be the case; an explanation is an account of why<br />

something is the case in terms of a cause. Where the cause is efficient <strong>and</strong><br />

deterministic an explanation may be inadequate if it falls short of showing<br />

that, in the circumstances, only the event in question could have occurred; it<br />

is certainly incomplete. But an explanation of an event is not shown to be<br />

inadequate or incomplete if it does not cite a deterministic cause.<br />

Given the arguments of this section, I conclude that per se efficient cause<br />

series cannot be self-explanatory; that Hume’s conceivability argument in<br />

support of brute contingency fails, <strong>and</strong> that quantum mechanics presents no<br />

counter-example to the principle of sufficient reason – on the contrary it is a<br />

useful reminder of the fact that while the search for explanations is a guiding<br />

principle of science we do not always require them to be deterministic.<br />

The questions of existential <strong>and</strong> causal dependency, therefore, are real ones,<br />

unanswerable by science but answered by postulating a Prime Cause of the<br />

existence of the universe. The ‘old’ <strong>and</strong> ‘new’ teleological arguments add to<br />

this the hypothesis that the Cause of the world is also a source of regularity <strong>and</strong><br />

beneficial order; <strong>and</strong> the argument from conceptual thought <strong>and</strong> action imply<br />

that this causal source is minded <strong>and</strong> a conceptual influence upon human<br />

thought (et hoc dicimus Deum).<br />

7 God <strong>and</strong> the World<br />

And this we call ‘God’? While some philosophers have rejected the traditional<br />

proofs outright, others have been willing to grant something to cosmological<br />

<strong>and</strong> teleological arguments but then query the theistic interpretation of their<br />

conclusions. Among those who reject the proofs some go so far as to argue

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