With the “Shuttle and Missile Objection”, de Bellescize highlights a logical contradiction that challenges one of the most accepted foundations of modern physics: the invariance of the speed of light in one-way motion. This paradox points to the necessity of the existence of a present for the universe — a notion long dismissed by the block universe theory. His work opens a door to a new model of space-time — one that reintegrates the flow of time and the relational structure of existence. It also calls for renewed dialogue between physics and philosophy, two disciplines whose separation may have left blind spots in our models of reality. His book Paradox of the Invariance of the Speed of Light has been translated into English.