I like that the scale of the game increases the further you go. The path of electricity follows a simple rule of electrical gradients. A real surge would happen near instantly.
The scope this makes me think of is biology. Cars in this game move particularly slow and it's a detail I like because in our biology, the pathing and evaluation of electricity, neurotransmitters, etc., all happens near instantly, and we only perceive the comparatively slow surface.
Outside of the nervous system is a muscular and hormone system that is much the same: following a set of physics as principles.
Nice game, thank you