The possibility that the Arrow is a key that uses light makes since archeologically since many human tombs in real history have used sunlight as a mechanical key, marker, or orienting device. It also fits the naturalistic SF concepts that avoid Deus ex Machina effects. Doesn't mean we won't see some serious stuff, though. Pure speculation based on the arrow closeup in Home, but better than what I thought two weeks ago. Spencerian 21:48, 22 Aug 2005 (EDT)