Memories or the lack thereof.

A totally random thought came to me yesterday:
If you take the "man" out of "woman", u get "wo" = "我"
Take the man our of a woman and she can find herself.

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Anyways, I was reading National Geographic about the human brain and how memories work.
Apparently there are people on earth who can remember every single detail, every little piece of memory in the lives,for instance, one of them can remember at 12.34pm, on Sunday, August 3, 1986, a young man she had a crush on called her on the telephone.
On the other hand there are those, whether infected by a disease or by an operation, gets a part of their brains currupted and they cant hold any memories. They cannot make temporary memories permenant, they forget almost immediately.
A specialist mentioned that it is the ability to forget certain things that makes us essentially human, because if we can remember every single detail, we cannot priortise, we cannot generalize....."to think, is to forget."

It is indeed interesting how the human brain works, why I cant remember last week's breakfast but I can remember the weird colour of the cakes I had made and steamed a few years ago. Why I can forget my handphone on the bus but remember my first handphone number.

But the problem is, the more scientist tries to understand and explain such things, the more probable they may try to tweak and change the way our brain works.
Perhaps my sociology class has affected the way I perceive some things, but what if they use a new technology to make you remember things you don't want to remember and make you forget the things u dont want to forget?
What if victims from an terrible accident suffers a memory loss, do they tweak their brains to dig out the terrible memories just so to know the truth?
What if someone saw a respectable guy commit a crime, and so they erase the person's memory?

For me, I have trouble remembering faces, I dont recognise people by their face. I only have vague memory of a person's whole body structure and outline but I do not look closely at people's faces neither do I remember them well.
But if I think of it another way, I'd rather not remember than have a memory so vivid I keep seeing ugly, weird, magnified faces of the people I see.
I used to have a friend who can remember faces so well, she can tell u how the man she just passed by on another part of the train looks like in detail.
We're 2 extreme cases and I think neither of us envy each other very much.
That's just the way our individual brains work and whatever the case, I require no treatment of any sorts.