This is really cool. This library seems to use the pointer’s trajectory to predict what you’re heading towards, and highlights the appropriate cube. I suspect this only works with pointers that can be detected as moving, like mice and styluses that have that capability, but probably does nothing useful with touch in most cases. Either way, give it a shot, it’s eerie. The most obvious use case for this is to pre-load a link if the user starts to head for it, but of course that has the side effect of possibly wasting the user’s data if they’re on a capped connection.