i think it depends on the person and the circumstances, then again sometimes things seem impossible to let go, eventually it goes away, the memory wont be as vivid but still there. It really depends wether or not you want to let it go...
I really dont know anymore im kinda neutral now
O_o

Sometimes it isn't about deciding to forget, it's about deciding whether something is worth remembering or not. If it doesn't register from the beginning you can't really decide to forget it...
And even so, depending on the situation, if it's traumatizing or painful, the brain might consciously or subconsciously buries those memories in order to protect the person...

Isabelle_905 i was just about to say that....i totally agree...the brain does bury painful and traumatizing memories but it does not erase the memories...that is how some people get double personality disorder...

decide that is so Kierkegard

Well, we might decide sometimes, but not all the time. For example, I didn't DECIDE to forget where I put my band music right before the concert. I didn't decide to forget my locker combination. I'm not that masochistic.

It depends.. sometimes we just forget, but most of the time, I think we want to forget.

I can't remember to forget.