The brain is more complex than we know

After my dad suffered a stroke years ago, the doctors had said that his long term memory would be greatly affected. They warned us to expect him to not remember any of us and to have forgot most of his life. Well, there were some small problems, but they were mostly from the grogginess of coming back to awareness after being out and sedated. There are some changes to my dad's short term memory, he looses focus easily and seems to have no concept of how much time passes - Which is odd, since I had always had the worst concept of time passage and he seemed to be able to tell almost to the second how long had passed.

His long term memory seems to be working good, though. He can recall stuff that happened throughout his life and his military career - often to the exact date. Mom and me were talking the other day about it and trying to figure out if half his brain is now gone because of that stroke, what information was stored there? He is paralyzed on one side and has no sense of balance any more, but surely that is not all that was there? He seems to be able to recall things as good as ever - even talks at times about novels he had read in the past.

I'm not sure just what the human brain is all about, but I do know it is more complex than we're going to be easily figuring out.

Shoot, the Myth Busters today were showing goldfish have good memories by teaching them in I think it was 48 days to work their way through a maze to get to where their food is at, so apparently even a goldfish brain is too complex for us to understand - why should we hope to understand a human brain?