It is possible for you to project to a future event in which you will be involved and by an act that you make in the projection, alter the course that this future will take. Such an action would therefore appear to happen twice, once in your present and once in your future. But in the future, you would be the one whose course is altered from this traveling self from the past.

p. 322 - Seth, Dreams & Projections of Consciousness, (1986)