 While the discovery of time travel is a great scientific achievement, its practical application is limited.After the initial discovery, it is soon found that due to its very specific geographic and other requirements, the time gate only works in one location and one point in time in the past.The device can be used to transport people, animals, and objects back in time to the Pliocene era intact, but any attempt to travel forward in time from the Pliocene by the same method ages the traveler or object by six million years instantaneously.