[Fyron]

There is little to no possibility of being visited by an alien race because it would be quite impractical to get to earth from another star system. It is impossible to travel faster than light, or even anywhere near the speed of light. It would take centuries to get here from the nearest stars, and there is no way those stars could support life on any planets that could be around them. Alpha Centauri and its companion stars probably don't even have any planets, much less ones that could support life. So, any life-supporting planets are going to be much farther away, making a trip here even less practical. Warp points (or frequent worm holes, which is what warp points would be, really) do not exist in reality, so that nullifies the possibility of bypassing most of interstellar space on the trip here.