Prewarp

Prewarp refers to a theoretical or hypothetical stage of faster-than-light travel that precedes the activation of a warp drive. In science fiction, particularly in the Star Trek universe, a ship must first achieve a certain sub-light speed before the warp engines can engage and propel it into faster-than-light travel. This preparatory phase is often referred to as prewarp. During prewarp, the ship operates within the constraints of conventional physics, moving at speeds less than the speed of light. Once this speed threshold is reached, the warp field generators can then distort spacetime, allowing the vessel to exceed the speed of light without violating the laws of relativity within its local bubble of spacetime. The exact speed required for prewarp varies depending on the fictional technology and narrative. Some depictions suggest a significant but still sub-light velocity, while others imply a more modest acceleration is sufficient before warp engagement. The concept of prewarp highlights the distinction between sub-light propulsion systems and the more exotic mechanisms required for interstellar travel at superluminal speeds. It serves as a narrative bridge between conventional motion and warp-driven transit, grounding the fantastical element of faster-than-light travel in a more familiar operational sequence.