i like dig bick

imagine, you have amnesia. you forgot your past entirely, so you don't really know who you are. so you lived your life like a new person. you might feel your entirely different because of who and what you are now. like you really don't know what you like, your personality, things you used to do, etc. so you adapt and lived a different life. but when the lost memory comes back, what will happen then? how will you live your 2 lives? you used to be like this in the past, but you are like this in the present? hmmmm

It's actually an interesting subject.
We don't really know much about how and why amnesia heal exactly (if they do)
But we know many different type of amnesias exist.
Neuroscience time! (I'm no expert I just love understanding brain and amnesia is one of my fav subject lol)
First you have the most common childhood amnesia, as we grow up our brain delete it, some people think it's because the growing phase is traumatic for the brain, you start understanding things and all, some think it's just because it get erased with new information both are the same thing in the end, that why you don't remember being in diapers (rare case of infantile memories where repertoried, people remembering everything from the day they were born)
You have drug/alcool induced amnesias (either go from some hour to a big part of your live) and well the name suggests everything
Then you have amnesias caused by some syndrome that cause it (I don't really remember that part but you can consider it a big umbrella who link some other type and even creating fake memories) but it's always due to some chemical problems in the brain

Then the most used amnesia in media:
First the Post Traumatic Amnesia, usually happen after a traumatic event (physical or mental) where everything related to the traumatic event get deleted, this one is tricky because it sometimes mix other types of amnesia (Retrograde, Dissociative or/and Global Amnesia)

Global - Struggle to form new memories or recall things said in the same day. Usually it resolved by itself after a day or at most a week. If it doesn't then it's another amnesia.

Anterograde - Where you conserve all your old memories but you'll always forget the day, people usually call this reliving the same day.

Retrograde - The most "common" one. You "only" forget the memories from the newest to oldest without erasing your identity and your habits, tastes, etc

Dissociative - In that case it's almost always linked to Post Traumatic Amnesia, it's deleted a part or the whole personality of a person, from their ability to do every day task (Regress to a child) to their usual food taste or even their usual mood, in media it's usually what doc diagnostic to transmigrators who act as if they forget "their" memories lol

But then what happens when they heal?
Also depends on the type of amnesias and/or how they regained them (was it due to relieving the trauma? Or naturally over the day/week/months/years? Was it brutal?)
Some people who regained them brutally would forget the days where they were "without" their memories, because it would cause trauma on the already overworked brain, where, people who regain them over time would mostly conserve them.
It depends on so many factors, making hard for doc (at least now) to be sure if a person while regain them or not and how many time it would get.

I think in our case, he is the type to regain them slowly so he'd mostly "fuse" with his current self and not "delete" them.

wow.. i like this, i didn't know there are specific types of amnesia. i just thought there's amnesia in general with different causes. our brain is really amazing, yeah? cause it stores a lot of information and deletes those that are not necessary... but why do sometimes it won't really delete those embarrassing, scary, or memories that had greater impacts? i just wish i forgot those embarrassing or scary moments i witnessed hahaha. aside from amnesia, I'm also fascinated with DID. like it's really something, how our brain alters the personality, taste, etc of a person. like they're a whole new person, but they're alters of the host.

one more thing. sometimes there's this memories that will resurface in a random moment, it felt like it happened but I'm not really sure if it happened in real life or just in my brain. idk sometimes i got confused.

No, this really, I don't need that embarrassing memory from when I was 7 when I said Mister to a Madame because she had short hair, please delete it lmaoo
But yes, it's really fascinating!
Also, about the unlocks of memories, sometimes it's because they are linked to scents, colors, words, forms which is also funny if you think about it lol
Because your brain do not just stock memories of the conscious mind but also the unconscious (exemple: You remember a conversation you had with a friend while walking. You were focused on said friend but your brain also analyzed the scent of the city, the chirp of the birds, the words of some passerby)
Normally the brain does a good job at prioritizing the information and what it should stock or not...but not always
If you made a mistake it register the stress hormonal response and if you feel stress/cortisol in an almost similar situation later..."cringe attack" lol
Sometimes it also stock the immediate memories in the long term memories (theory is, that what causes déjà vu, you think it already happened but no, brain just went brr)
Also before sleep your brain treat all the informations and stock or delete them if needed thus the insomnia sometimes ahah

Of course I don't claim to know everything, I'm not expert and have done no legal study on it ahah

For the DID, same! It's incredible how the brain can compartment the personalities and tastes, memories etc

I hope we'll understand the brain 100% one day ahah

yeah hope so too lmao.. our brain is a reliable organ, but could be unreliable too because of this unexplainable and explainable phenomenon haha. nice talking with u btw ;)

The brain trying to understand the brain in also an interesting concept lol
And I'm glad you didn't find me annoying ahah
It was nice for me too (who would have thought we could speak about something like this on a yaoi section lmaoooo)