Don't forget, with Lacuna, you can forget.
From what I understand, our memories are malleable. Though they are based on reality, they are still an interpretation. As we form the memory of something we experienced, factual details can fall in and out of focus, they can be completely absent or they can even be replaced by disinformation. Furthermore, it takes a long time for a memory to form, maybe days or years afterwards. In other words, our memories aren't perfect.
This is not the only way we form memories however. Imagine this:
Its a nice day. You are a walking through the jungle. A lion spots you and decides that its lunch time. You run to the nearest tree and begin to climb it. The lion claws your leg. You get a huge shot of adrenaline, your mind and body immediately focus. You manage to escape inspite of your injury to live another day.
The memory you form from that experience is not the least bit muddy, its actually rather solid and vivid. This memory doesn't take long to form, its made there on the spot. Your mind labels it as extremely important information that must not be forgotten. From an evolutionary stand point, this makes good sense seeing how the next time you encounter lion you will be wise enough to avoid another potentially lethal attack.
(Ok, this is where the Eternal Sunshine of a Spotless Mind reference comes into play. )
Apparently, there is a new drug in development that allows you to weaken, alter, or possibly erase memories that were produced when you were under excessive amounts of stress. To put it another way, you can delete painful memories from your brain.
You might ask yourself, "Why would I want to remove a "lion memory" from my brain? If I did, I might not know enough to survive in the jungle." The answer is because painful memories can possibly cripple you, for example Vietnam war veterans or a victims of violent attacks who suffer with post traumatic syndrome..
The 60 minutes episode featured a woman who was raped as a young child, and was haunted by a vivid memory of being raped every single day of her life for the last 35 years. Once she began taking samples of the experimental drug, all of a sudden the memory of her rape stopped haunting her, and she even had difficulty recalling it. The creepy thing is that the rape was so deeply ingrained into her identity that once it was gone, she no longer felt like herself.
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Edit:
So I was telling all of this new exciting brain information to my friend Miho and we got on the topic of Buddhism. We discussed how Buddhists strive to have no sense of self, have no judgement, and have a freely open mind / body / soul. Each experience ought to be approached calm peacefulness. And Its important to not lose control over your body (i.e. Stress, Excitement, etc).
The funny thing is that if I connect what I learned about Buddhism with what I learned on 60 minutes, then I can infer that by controlling their stress levels, Buddhist try to not form any solid memories. They also diminish the odds of having "defining" / "haunting" memories of their personal struggles in life. The very things that define them as indifviduals would cease to exist, resulting in a greatly reduced sense of "self".
I'm not an expert in brain studies nor Buddhism, so take everything I said with a grain of salt, but I thought it was amazing how modern science can connect with an ancient religion in such an interesting way, so I thought I'd share the good news.