You don't need warp drive to go to the stars. You need suspended animation, extreme life extension, brain uploading, sentient AI, or some combination thereof.

You don't need warp drive to go to the stars. You need suspended animation, extreme life extension, brain uploading, sentient AI, or some combination thereof. At 10% the speed of light it is maybe 50 years to the Centauri system including time to accelerate and decelerate. We already know one physically plausible propulsion system that could do it: thermonuclear Orion. Fusion rockets could as well but the physics is not as totally proven out as e.g. H bombs. 50 years is fast. It only seems slow because we are very short lived and very fragile. Biology, not propulsion, is the primary barrier to interstellar flight. Even if it were possible, fixing biology would probably be a ton easier than a warp drive. But see also: Fermi paradox.