Summa Totalis

If we knew every detail of past events, could we predict all future events? With a precise map of the future in hand, couldn't we add a butterfly's wing flap here, subtract a raindrop there and render Utopia? The Cosmo's oldest intelligent species thinks so.
Millions of years ago, they built an interactive model of global events and turned their best and boldest loose in the perilous, unregulated clockwork to compete for a solution, so far without results.
Among the current competitors, one ...