At death the mind continues to exist in its realm as the body remains in the physical plane. According to this model, it would be possible to predict the future to some degree of accuracy given complete knowledge of present conditions and enough calculating power to work it out. Now suppose all the knowledge and power of the entire mind dimension were available to us, this may explain the mechanism of precognition. This is how freewill operates. This model implies that the future is more or less predetermined, but subject to slight but permanent changes caused by effort of the will.
All forms of life have certain power over their environment.
But it's arrogant to assume there is nothing more powerful than man in the entire universe. There are probably many entities which are superior to man, the most powerful of all is God, who is immortal and has complete knowledge, power and intelligence. The multi-dimensional model doesn't invalidate the work of science through the centuries, this work continues to provide a useful description of events within the physical universe, however it does limit science to the physical realm, in a similar way to which the rules of special relativity are limited to objects in a state of uniform motion. Hopefully this multidimensional model allows the possibility of reality existing beyond the bounds of the physical world.