The pioneering contributions of Dr. J. Tinsley Oden fundamentally redefined predictive computational science, transforming it into a rigorous discipline centered on making reliable predictions of complex physical systems. This article attempts to articulate Dr. Oden’s vision and philosophy for scientific prediction, emphasizing the development of computational models that do not merely approximate some features but truly predict complex physical phenomena and systems, spanning applications from cancer treatment to the behavior of advanced nanomaterials. We highlight the core mathematical and statistical foundations he advanced, including Bayesian frameworks for uncertainty quantification, systematic methodologies for model validation, and adaptive strategies for controlling prediction error and balancing model complexity against predictive reliability. Finally, we discuss how Dr. Oden’s legacy has established a new scientific paradigm of the science of prediction that continues to advance the frontier of computational science and engineering, guiding future generations toward the rigorous development of mathematical and computational models that span everyday technologies to high-consequence decision-making in critical systems.