Interesting. When I mediated about it a little further that's where I sorta arrived too. The x-axis would be future/past. The y-axis would be different timelines. So if I go from present (0,0) to (2,2), I'd be going 2 clicks into the future and 2 timelines up (whatever that means!).
In Pacman terms, I guess you could program it so that going up or down with the second joystick changes the terms of the game slightly. Maybe the maze configuration changes or in one timeline the ghosts bounce off you when you run into them but the walls themselves zap you.
In a more nuanced conception of the timeline axis, I suppose y-points would have to be branched or braided off x-points. Maybe that's where the third dimension comes in.
I'm sure Egan has worked it out with more rigor. I checked out the link for one of his books above but I admit I blanched when I got to the synopsis:
Seth is a surveyor, along with his friend Theo, a leech-like creature running through his skull who tells Seth what lies to his left and right.
I've got enough on my plate at the moment with the dissolution of civil society. I'm not sure I'm ready to entertain leech-like symbionts confronting the disintegration of time itself.
In Pacman terms, I guess you could program it so that going up or down with the second joystick changes the terms of the game slightly. Maybe the maze configuration changes or in one timeline the ghosts bounce off you when you run into them but the walls themselves zap you.
In a more nuanced conception of the timeline axis, I suppose y-points would have to be branched or braided off x-points. Maybe that's where the third dimension comes in.
I'm sure Egan has worked it out with more rigor. I checked out the link for one of his books above but I admit I blanched when I got to the synopsis:
Seth is a surveyor, along with his friend Theo, a leech-like creature running through his skull who tells Seth what lies to his left and right.
I've got enough on my plate at the moment with the dissolution of civil society. I'm not sure I'm ready to entertain leech-like symbionts confronting the disintegration of time itself.