Slashdot | New Model Solves Grandfather Paradox

Why do they always have to come up with such complex solutions? Haven't they ever heard of Occam's Razor? Simplest answer and all that? Wouldn't it be a simpler explanation if 'changing the past' just switched with dimensional track you were on (ie: in the dimension you move to, that is exactly what happened) -- or even more simply, that time is simply an illusionary filter that we use to help us better deal with the overstimulation around us, and that time is not truly linear -- in which case there is no paradoxes at all?