Even if we do, there's no reason to think they would reach us. Shooting a bullet at random possibly habitable world is likely, at Earth or even Sol in particula

Even if we do, there's no reason to think they would reach us. Shooting a bullet at random possibly habitable world is likely, at Earth or even Sol in particular, no. Barring some sort of teleportation technology or whatever FTL is, the amount of energy required to travel there in reasonable time is huge.