This text explores the nature of evolution through the metaphor of a train that must continuously dismantle the tracks behind it to lay them down ahead. This imagery illustrates a process where progress is not dictated by a pre-established goal but is both constrained and enabled by past structures. The author argues that "development" is not merely the unfolding of an innate blueprint, but a dynamic adaptation in which both the path and the subject undergo constant transformation. This directedness without a fixed telos allows for the emergence of novelty in response to terrain that reveals itself only as the journey progresses. Development is thus understood as a process with open possibilities, where the direction is continually adjusted to ensure continuity and avoid obstacles or abysses. The concept is further enriched by the idea of multiple paths and attempts, acknowledging that evolution involves both successful and unsuccessful trajectories in the search for a viable future, reflecting the inherent spontaneity and risk of any creative process.