From Nick Canning, Coleraine, County Londonderry, UK
The assertion that we live in a block universe where time doesn’t exist runs counter to two phenomena: the weather and radioactive decay (18 June, p 38). Deterministic chaos, as seen in meteorological phenomena, combined with quantum uncertainty, as exhibited in radioactive decay, mean that the fatalism (absolute determinism) implied by the block universe can’t be a good description of our universe.
