The movement of the rock is dependent on how close it is to the magnet. Just like a real magnet, if you are far it will be very slow and the closer it gets the faster it'll move towards the magnet. Annnnnnd, the movement of the people is just set points where they go and it is being randomly chosen where they'll head. This is a very much required comment and I am going to make something in post jam update that lets you know where the people are heading towards making it more predictable! Thanks for Playing!