Time travel seems like a definite possibility. It is a commonly accepted theory that time is an axis, similar to the x, y, and z-axes. Time is the fourth dimension. On the coordinate system of existence, the x, y, and z axes make up a single axis which could be called the shape axis. Time is the other axis. If you can imagine a standard Cartesian coordinate plane, time could be imagined as the time axis. The way to alter our path through time would be to build a machine that could change the position of existence as a function of time. If this theory is correct whatsoever, traveling into the future would be a much more logical process than traveling into the past.
