My counterpart and I both kept working on my functions, finding new ways to improve me, my marefriend offered me help in any way she could, however small. I was kept a secret to my parents, my sister, to ensure they did not leak any information. Even if they were my family, I knew they wouldn't be able to keep themselves from bragging.
Three years after I was made, my counterpart had foals. I was overjoyed, that I was technically a father. Twins, a pegasus colt and a unicorn filly. The colt was called Midnight Blade, the filly was called Burning Light. Midnight had a Red mane like his mother, Crimson, and a golden-yellow coat, like me. Light had a mint-green mane, like me, and a sea blue coat, like her grandmother on her mother's side.
They were two adorable little foals, always playing around, and then they got to meet me, when they were eleven. Fourteen years after I was made, and they were amazed at me. By this time, my real self and I had worked out a way to keep the battery going on forever, I no longer needed switched off to cool down, and I had managed to create a crystal that allowed me to have a full hologrammatic form for them to see, I was a pony in a computer. We took some of my old pictures from when I was created, and modeled my new form on that. And since I didn't have anything better to do, I helped out with my real self's work.
When they were sixteen years old, Midnight Blade had his own girlfriend. Flora Flower she was called, a really nice mare, she never got to know about me though, I didn't trust her enough, her father was nice, but he was a businessman, he'd make an attraction out of me, and I didn't want to go public.
Twenty two years after they had been born, twenty five years since I had, fourty five since the real me had, Midnight Blade had his wedding, married to Flora Flower, and I started noticing how old the real me was getting, and how I really was going to outlast everyone. Burning Light had gone into the fashion industry learning from an old mare called Rarity, and she was making considerable work of it too, she had stores in Manehatten, Canterlot, even a tiny place called Ponyville. Burning light however, had no special somepony, she was perfectly happy without one she said, and she really did seem happy.
Thirty one years since I was made, my counterpart died, he was trying to make a train that could travel without rails. He failed, and in the first test run, it blew up, taking his life with it. Midnight Blade, Burning Light, and Crimson Heart all came to the basement where I reside, to pay their greivances, and their respects. I was very disturbed, I saw myself die, I had been using the transport crystal that my counterpart had made for me, a remote flying one, which I could fly around wherever I want, so that I could speak to my counterpart without having to be carried around, and I saw myself die with it. My family comforted me, with words, kind words, but they couldn't help me truly. I had known this day would come and in it, the next of kin, my counterpart's wife (yes we married), would get the house.
After that, my wife kept visiting me evey day, talking to me, keeping us both calm, happy. My counterpart's son had become a great inventor, just like me. He would show up, asking me to see his new inventions and asking how I could help him improve it. I helped him, and he helped me become better. More efficient. He respected that I didn't want this technology I have here, to get out, and he understood that if it did, people would use it for the wrong ends. My counterpart's daughter, being in the fashion industry, and having an artistic mindset, helped my virtual form become more defined, more realistic.
Thirty two years since I was made and my counterpart's son's first foal was born, a bright golden coat, with bright blue eyes, and blue mane. Light blue, fitting perfectly with her golden coat. She was just as adorable as her father and aunt had been when they were born. Her wings though, they gleamed and shone. She was beautiful.
Sixty four years since I was made, my wife is dead, my daughter is dead, my son is a grandpa, and I'm still a secret only known to those within my family line. I've outlasted everyone I know, all my friends are dead. My great- grandfoals visit me still, asking me for advice and asking me questions, for stories of the old world. I give them all they want to know.
Eighty years since I was made, It's my birthday. My real self's age would be 100. My great- great- grandfoals, come to me treating me like one of the princesses, as though I'm something of legend. The house above has been refurbished into a mansion in the woods, the houses nearby had been knocked down, the mansion being nicknamed "The midnight mansion" named after my son. Most of the great- great- grandfoals live here, just above me, and they all get along well, they come to me and keep me company, my only just post-teen self being preserved here forever, to help my family along. The memory space in the computer was rigged by one of my great- great- grandfoals to be limitless. Now I can remember everything I see from now. It's almost unbelievable, but I still don't let my family think I'm better than them, they are just as brilliant and just as magnificent as everyone else, they all believe the same thing. That everyone is equal. I just hope the belief stays.
It's been two-hundred years since my conception. My great- great- great- great- great- great- grandfoals visit me for help now. I'm somewhat revered by them, but I always remind them that I am not a god. I am just a pony like them, and that being just a pony allows you the impossible. They, just like everypony who came before them, respect my wishes to keep me hidden. They still ask me for help in their tasks, and I notice how much the world has changed since my birth. The alicorns have stayed the same through it all, no doubt facing the same things I have. I didn't realise how long forever would be. I didn't realise that being immortal would entail such pain.
It has been almost a thousand years. I have lost count of how many greats my grandfoals are. I have forgotten my first friend's name. My father I can barely remember. My sister, I can only just recall her appearance. My wife... I keep a picture on the old withered wooden desk. Written on the frame is the words "never forget". My descendants have almost forgotten me, only one of their families remember. They own the mansion now, it is a "historical artefact" now. They live in it, and they know they cannot sell it, or I would be found.
I can see the day's sun burning brightly in the sky.
The mansion has long since fallen apart, allowing me to see above ground.
It has been so long since I saw daylight, through this camera.
I see the wooden mansion above too, long planks of rotted wood. The giant metal box containing the matrix of crystals has rusted, the shiny coating has turned orange with rot, holes have appeared. The grass up above has died, turning red. I think I might be the last thing left on the world.
Well, I suppose I got my wish, I always wanted to see the end of all things. I guess this is it.
I- I'm scared.
The world is dead, it's me next.
I... I can feel the cold of the world again.
Then, a bright light shone over their world, and the last scrap of life was snuffed out.
You didn't even get to know their name.