Just remembering is one thing and remembering with details is another thing. computer hard drive and memory are imperfect imitation of the human brain. For a computer, a complete disk wipe can be done, where nothing can ever be retrieved, using the appropriate software. You can also delete things you don't have the need for.But for the memory, you don't have the choice between what you want to remember and what you don't. Sometimes, the later even seems more dominant.Hm. For what is worth, we've gotta live with that misery.