I read a short story in 2012 that I found online in a PDF form. At the time, I was Googling Luddites, looking up information about Ray Kurzweil, and somehow came across books about computers in life/futurism. This may have been something I found through StumbleUpon.
Here is what I remember:
The main character was a man.
He found his wife/girlfriend based on a computer calculating all the possible matches for him.
At multiple times throughout the story (3 or 4 I believe), the man suddenly "feels something"—which I took to be he could tell that he had a feeling that there was something more to his life, but then the feeling fades. Essentially, his whole life is being calculated and planned—as though all his choices and life is turned over to the computer that he uses and probability.
The main theme was that the computer has indirect control/influence on the man's life and that the origins of his "feeling something" was his realization that he wasn't really living for himself and that he had regained some minimal and fleeting control of his life.
There were no aliens, no other planets involved, and a lot of the content was quite familiar to us in the second decade of the 21st century (in fact, I think a year was referenced in the story between 2020 and 2070).
Here is what remains cloudy in my memory (as in I could be wrong):
I don't think the computer had a name.
I'm fairly certain the author was male.
I think the main character had an occupation as a programmer or other technology-related job.
Much of the content/plot involved the computer's influence on the man's life via calculating parts of his life or somehow majorly influencing it (passively and actively).
The short story, based on content and my time of reading, must have been published after the year 2000; I say this because the content seemed to have social networking in mind.
I don't remember whether the short story was a standalone in the PDF or whether it was part of a collection of short stories. My untrustworthy memory leans more towards the story being standalone (as in, it was a PDF of just the story and nothing else).
I've Googled this for hours on end without luck, but will update my post if I find leads or remember more. I also went through my StumbleUpon history because I thought I might have come across it that way, but no luck there.