Did you ever - after a marathon computer game playing session find yourself still seeing the screen when you close your eyes?
I went for a marathon trail ride - thanks to Mikey V. - yesterday doing three different sets of trails, morning [South], noon [East] and afternoon [North].
I found that when I went to bed and shut my eyes I could still see the trails I had ridden.
Memory burn!
kewl!
-- 'I know you've deceived me, now here's a surprise I know that you have 'cause there's magic in my eyes I can see for miles and miles and miles and miles and miles Oh yeah' -the who