Karl Giberson
Abstract The world picture disclosed by classical physics, beginning with Kepler, Galileo, and Newton and continuing until the early part of the twentieth century, was increasingly deterministic. The prevailing metaphor was that of a clock: as a clock is wound up and runs in an entirely predictable way which can be known from its initial conditions, so the universe unfolds according to a deterministic plan. Such a universe, unfolding under the influence of forces so absolute they were called ‘laws’, appeared to have limited opportunity for divine action. The theological response to this world picture was deism: God created the world but it runs on its own. This world picture collapsed in the early twentieth century as quantum mechanics was discovered and developed into a central, if not the central, part of scientific understanding of physical reality. The quantum-mechanical world picture cannot be modelled after the gears, pulleys, and levers of the classical world: its irreducible constituent parts are more like tiny clouds than tiny gears. Furthermore, the behaviour of these smallest parts was discovered to be indeterministic, and eternally so until observed by a mind. The mysterious behaviour of quantum particles, which compose all reality, and the puzzling role of minds invited speculation that God may be acting through the natural order to influence events. Such divine action could exist entirely within the envelope of possibilities possessed by quantum particles and thus not require any disruption of the natural order.
Oxford University Press eBooks•Jun 9, 2021•0 citations