Short SF: Mind Backup story

Behind the dunes, the waves of the infinite ocean slide up and down the beach like hissing static. Or like breathing, a sound I haven't heard since, well, forever. It's very peaceful here.

My mind is like the number pi or e.
A few quadrillion times harder to describe, but just as timeless.
The set of all numbers that could describe my mind, in fact.

That set will become ever better defined by Posthumanity in a type of non-linear calculation.
The outline of my existence was defined from the outset, then filled in with increasing detail. Holistic, recursive, holographic. New events can be added forever without conflicting with the memories I've made here. Not created linearly like the physical universe, my time perception emerges from inside.

The simulation has no definable starting point. I have always been here forever, will always be alone.
A viewpoint without a body. That was part of the protocol. Strong emotions are also forbidden. But once a week, I relive some version of my first day here.

I remember a mantra from an ancient spiritual ritual: "Where would you be safe?"
Processing data on my virtual island set in an infinite ocean is as safe as it's possible to be.

There are many accurately recreated memories from my physical lifetime.
About a hundred thousand partially described events and mind models. Composite locations and settings that existed in my past, a few dozen detailed buildings and surrounding areas. Charlotte, West Savannah, Tulsa, New Utopia.
And of course a vast media collection from my living years. Expanded into an infinite library I have created myself, only a tiny fraction of which I access on any day.

On June 23, 2042, I locked my house door for the last time and took a cab to the Euthanasia Center. That had become legal only six years earlier.
I had tried to delay this trip as long as possible, year after year. About five years too long, in fact.
In 2041, the World Mind finally invented a workable mind/brain scanner. A fractal flowchart that happily accepted my collected scraps of digital data, to breathe life into my digital ghost.

A lifetime of terror of bad things happening has saved me.