The Outer Limits: "The Man Who Was Never Born"

I thought that this episode was very interesting and had a different method of time travel that did not include a time machine, but a spaceship instead. A man is travelling through space and seems to hit some sort of time-barrier that brings him to the future. He lands on the planet that was Earth. He finds that it is deserted accept for a strange man with a face that looks anything but human. The strange man explains to him that the human race was almost extinct because of one man who messed with alien and human genes. They decide to go back in time and correct this problem. When they are in the spaceship, the human from the past dies which leaves the human from the future, Andro, alone to land on Earth. He uses 'hypnotic suggestion' so that people won't see what he actually looks like. He ends up falling in love with a girl who turns out to be the mother-to-be of the man who caused all of the problems. Andro meets the father to be of the guy also, and causes a scene at their wedding and runs away. The lady follows him and tells him that she never thought she actually loved the other man.  Andro tells her who he actually is, and why he is there, so she convinces him to let her come with him back to the future. When they get back into the spaceship, Andro starts to disappear because, by taking her with him, he creates a world in which he never existed. This episode again supports the idea of changing one little thing in the past makes a whole new future. I think that the idea of a wormhole of some sort or barrier could exist somewhere in the world, maybe in space, like in the episode. This would be a very cool discovery, but could be a possible problem or have a dangerous outcome, like this one happened to have. But, if it saves the human race, I guess it would be worth it.