In a message dated 6/21/99 6:59:23 AM Mountain Daylight Time, 
chaoswaith@geocities.com writes:

2 things, one, it is as imppossible for him to get amnesia 
 physiclly as it is for him to get a scar.  Amnesia is caused by 
 DAMAGE to the brain, yuta and mana heal all physical damage.  If 
 the experience from falling was traumatic enough, he might block 
 out his life and have an irrational fear of heights, but I doubt 
 that considering he knows damn well he's immortal.

Bleh.  You have a point.  Well, I could 'get around' it if you've seen 
Mermaid's Scar, where Misato's adopted mother dies because she no longer has 
a will to live.  Maybe if Yuta had amnesia for a brief moment, he'd forget 
his will to live, and the amnesia would take longer to heal.  After that, 
Ikeda and Ayana become his reason for life, so his amnesia takes even longer 
to go away.  Ok, so I'm stretching it, but I really don't want to quit this 
fan-fic 'cause my IRL friends say it's the best one I've ever written (even 
though it's the second one [i think] I've ever started).

~Luna