"Imagine the year 2035. Imagine that time travel is possible, and the technology exists in this world. Now, image you walk into a room, and see a friend of yours laying in a pool of blood, and you panic. Imagine you take a time machine, and venture back in time to change this. How can you change the events of the past to prevent your friend from death, without preventing yourself from going back in time in the first place?"
-Samous, quoted from FB.
In case you were wondering, this conversation led to discussions on multi-dimensional Time Travel, hence http://samouswebmaster.deviantart.com/art/Guide-to-6D-Time-Travel-294019140.