[happyslobro]

A faraway sentinel element is pretty clever, I never thought of that.

Anyway, as long as there are legitimate cases where infinite scroll is superior to click-to-page, I am glad that someone is focusing on this problem and treating it seriously. When you really stop to consider the problem, you start to see that it has all of the complexity of a one dimensional scenegraph over dynamic terrain, in a game where the "player" can warp and fly at high speeds, but can't reasonably store the full dataset locally.