McFadden performed all her own stunts in this episode from the swirling vortex sequences to the horizontally hanging on sequence.
	Only days after this episode was shot, McFadden learnt she was pregnant.
	This story is producer Lee Sheldon's only contribution to TNG.
	The disappearance plot was originally to be integrated into "Family", but was cut for time concerns.

If you have some more behind the scenes information, send it in.