Time Travel

Definition
Time Travel is defined as the movement from one location along time to another, with your direction and speed through time remaining the same.

Using time travel, you can jump from one time to another without existing in between. However, this can cause problems when you suddenly materialize in your destination time. Anything that happened to be in the spot materialized in, even air itself, would now be overlapping with the item that time traveled. If a living thing were to do this, the sudden air appearing inside their bodies would most likely be fatal. To avoid this, materialization must occur within a vacuum.

If you arrive safely in the past, there is the possibility that you could create a time paradox. In time travel, paradoxes can only be created when things travel to the past. Paradoxes never happen when things are in the present or future, something has to go to the past for a paradox to occur.

Upon traveling into the past, one of three things can happen. You can change the past, you can change the past and create a time paradox, or you don't change the past. In order to change the past, you would have to create a one-time loop between what the past originally was and what you're changing it to. The changed timeline would have to still allow your past self to time travel, and must give them a reason to as well. If it does, your past self will time travel, appear in the past, and make the changes that sustain the timeline in which your past self time time traveled. However, if you make a change that results in your past self not time travelling, from either not being able to or having no reason to, then your past self will not time travel into the past, and then they won't make the changes that made them not travel into the past, which means that your past self will be left undisturbed, and when you weren't disturbed by your future self right before time travelling, you time traveled, and disturbed your past self. It would create a paradox. (see cause and effect)

Upon traveling to the future, you will disappear from when you left. You will not be able to meet your descendants, unless they had already been created, without travelling back.

Bringing back technology from a future to a time before could create a paradox, however, that paradox may stabilize.