Children learn fast.
Memory gets worse with age.
Easy enough but I was wondering if "bad memory" is degeneration of the brain and loss of cells alone, or if it has to do with storage space. Im guessing the brain dont have infinite space. Can we think of bad memory as something positive and a defensive attribute rather that a bad thing? I mean the more you learn the more the brain has to store. But I'm thinking, what if the brain simply has to forget to make more room or to easen the strain on it?
Thinking about it this way "bad memory" could be a good thing right? Meaning your brain throws away "useless" memories and knowledge to make space for new and better stuff`?
Anyway - my question is: Is the cause of bad memory and forgetting stuff only due to cell-loss and degeneration/age - or does the brain purposely erase things to up performance and not cause the brain to suffer from to much info?
Also a small thing I'm wondering about: Do people with good memory suffer on other mental abilities as a price for having good memory? Do people with bad memory benefit somewhere else due to it?