Spacetime

Question: If the universe is already determined does that confirm the existence of a 4th spacetime dimension, given a linear model of time?

I do believe so. The fourth dimension of space is time, making spacetime. It is almost universally accepted that time is linear, meaning that every event that has ever occurred could be plotted on one solid line. Where or not time is finite or infinite is still a matter of debate. The main point is that linear time provides the most obvious demonstration of causality.

If the universe is already determined, then how your consciousness is going to die has already been determined; Your life from beginning to end has already been determined. Now, similar to how second dimensional being could hypothetically travel along in the 3rd dimension without its knowing (a third dimensional being could bend a long piece of paper and twist it (making the ends touch to make it 3-D). We are, if this is right, travelling along a 4th dimensional path completely unaware to this. Given that only a third dimensional being could see the previous dimensions, only a 4th dimensional being could see it's own life and possibly the events contained in it.