dimension (5) available to result in two different 4-space outcomes. "Selection of value" is a 5D "time-like vector" and not all result in continued cognition, if you drive off a cliff the higher D potentials ("ranges of motion") cancel and yer dead. But select a 5D that results in life you live.
Traveling to a new location is accessing a 5th dimension? I can drive off a cliff if I imagine/conjure more dimensions to escape into Sounds kind of odd. Mysterious even
Yes, or rather the choice to travel occured in/is described by a 5D math matrix. If you assume 4 *and only* 4 it's much harder to accept the sense data as valid, but there is sense data. Memory, prediction, deja vu and foreboding are all common "sensations".