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<blockquote data-quote="MerakSpielman" data-source="post: 1245164" data-attributes="member: 7464">The question is, I suppose, what point of your body does the disk attempt to follow? &nbsp;It seems (pure speculation) that it should attempt to follow your center of gravity. As far as the disk is concerned, it exists on a plane 3' above the ground. It cannot travel up or down. So perhaps it follows that point on the plane that is directly below (or above, for the very short) the caster's center of gravity?&nbsp;If the caster is sitting on the disk, the above-defined point would exist in the space occupied by the disk itself. If you scooted over a bit or flung your feet over the side, the point would be off-center.&nbsp;Assuming you then order the disk to &quot;follow&quot; you, would it attempt to align its own center with the point (creating the personal-mover device), or would it balk, since its simple program might assume that it has collided with its controller?&nbsp;I would personally rule that it cannot follow its caster if the caster is sitting on the disk because, frankly, the caster isn't actually moving. Unless the caster is already moving, the disk can't follow him.&nbsp;&nbsp;I've been doing some thinking about this spell. What happens if you cast it on the deck of a ship? Does the deck count as &quot;ground?&quot; What if the ship is moving? What if it is moving exactly at the caster's movement rate? What if it's moving twice the casters movement rate? Does the disk then get left behind? What if you cast it below decks? Do you damage the ship as the disk is left behind?&nbsp;What if, say, instead of a ship we have a wagon or other land vehicle traveling at the caster's movement rate? The caster casts the disk, then moves forward to the front of the wagon at a 5' rate. Can the disk follow, even though the total movement rate of hte wagon and the caster totals 5' greater than the casters normal movement rate? Say, then, that the caster casts fly and moves forward off the wagon at the same 5' rate... suddenly he's over the ground, moving fast enough to leave the disk behind. Does the disk move extra-fast until it leaves the wagon, then slow down and start getting left behind?&nbsp;Ah, magic and relativity...</blockquote>

[QUOTE="MerakSpielman, post: 1245164, member: 7464"] The question is, I suppose, what point of your body does the disk attempt to follow? It seems (pure speculation) that it should attempt to follow your center of gravity. As far as the disk is concerned, it exists on a plane 3' above the ground. It cannot travel up or down. So perhaps it follows that point on the plane that is directly below (or above, for the very short) the caster's center of gravity? If the caster is sitting on the disk, the above-defined point would exist in the space occupied by the disk itself. If you scooted over a bit or flung your feet over the side, the point would be off-center. Assuming you then order the disk to "follow" you, would it attempt to align its own center with the point (creating the personal-mover device), or would it balk, since its simple program might assume that it has collided with its controller? I would personally rule that it cannot follow its caster if the caster is sitting on the disk because, frankly, the caster isn't actually moving. Unless the caster is already moving, the disk can't follow him. I've been doing some thinking about this spell. What happens if you cast it on the deck of a ship? Does the deck count as "ground?" What if the ship is moving? What if it is moving exactly at the caster's movement rate? What if it's moving twice the casters movement rate? Does the disk then get left behind? What if you cast it below decks? Do you damage the ship as the disk is left behind? What if, say, instead of a ship we have a wagon or other land vehicle traveling at the caster's movement rate? The caster casts the disk, then moves forward to the front of the wagon at a 5' rate. Can the disk follow, even though the total movement rate of hte wagon and the caster totals 5' greater than the casters normal movement rate? Say, then, that the caster casts [i]fly [/i]and moves forward off the wagon at the same 5' rate... suddenly he's over the ground, moving fast enough to leave the disk behind. Does the disk move extra-fast until it leaves the wagon, then slow down and start getting left behind? Ah, magic and relativity... [/QUOTE]

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