[teraflop]

One concrete effect is that the the circumference of any given circle increases exponentially with its radius. So navigating without landmarks is much harder, because any slight errors in your direction of travel result in you going off-course by an exponentially increasing distance, rather than linearly as in Euclidean space.

Another effect is that "parallel lines" don't exist in quite the same way. That is, any given line has infinitely many non-intersecting" parallel lines, but they all diverge from it rather than maintaining a constant distance. So one entity pursuing another along a "parallel" course will have to constantly turn* to keep following them, which lengthens their path and slows them down.