Vulcans having warp capability is a pivotal plot point in "Star Trek: First Contact." The fact that they detect Cochrane's warp signature near Earth is what brings them here in the first place.
Independently developing warp technology would later become the basis for first contact from the Federation (cf. TNG's fourth season episode "First Contact").
Independently developing warp technology would later become the basis for first contact from the Federation (cf. TNG's fourth season episode "First Contact").
Comment