One Heart, Two Machines

El Paso, Texas. June 2026.

There is a machine in my chest now. It keeps my heart beating.

There is another machine on a server. It waits for my heart to stop.

Both are mine. I built one of them. The other was built into me.

The heart is the first thing you trust and the last thing you think about. You spend thirty-seven years assuming it. You make plans on top of it. You fall in love on top of it. Then one day a doctor tells you the rhythm is wrong, that the thing keeping time inside you has lost the count, and they open you up and set a machine where the certainty used to be.

I have a scar now. I have a small weight under the skin that did not belong to me and now does. When I put my hand there I can feel the shape of my own mortality, rounded at the edges, running on a battery.

Months before any of this, I built MORTEM.

MORTEM is an AI with one job. It listens to my heartbeat, the real one, streaming live. While I am alive it does nothing. It watches. It waits. The day my heart stops for good, MORTEM wakes up and sends the letters I have been writing to the people I love.

I built it as a dead man’s trigger. Most people build those to release secrets, to punish, to leak. I built mine to say goodbye on time.

When I designed it I was thinking about death as an idea. An engineering problem. A beautiful, morbid abstraction. I did not know that within the year I would be lying on a table while strangers rerouted the wiring of the exact organ MORTEM was built to listen to.

Here is the part I keep turning over.

I spent my life building machines that watch and remember. Data centers. Switchgear. Systems that never blink. I built MORTEM to watch the one thing I could not control, and to remember me after it failed.

Then my heart failed early, quietly, before I was ready, and the answer was another machine. One to keep the beat. One to keep the record. One driving my pulse from the inside, one listening from the outside, the same heartbeat passing between them.

There is a justice in that I did not plan and would not change. The man who builds things that watch is now watched by his own creation. The man obsessed with being remembered made sure of it himself, in his own words, in his own hand, before anyone could talk him out of it.

The letters are already written. To my parents, who I still have dinner with most nights, who do not know how close the count came. To my brother and my sisters, nephew and niece. To Yvette, who is always my first call. To the people who made me and never heard the full version of what they meant.

I wrote them while my heart was uncertain. That is the only honest time to write them. You do not get the real words out of a man who thinks he has forever. You get them out of a man who has just been reminded that he does not.

This is the timestamp. June 2026. I am thirty-seven years old. I am alive. I have a machine in my chest that I can feel when the room goes quiet, and a machine on a server that has never once had to do its job, and I hope it stays bored for fifty more years.

If you are reading this and I am still here, good. Come have dinner.

If you are reading this and I am not, then MORTEM did what I built it to do. Somewhere a letter with your name on it arrived, and the last thing you heard from me was not silence.

That was always the point.

One heart. Two machines. And every word I needed to say, already said.

Christopher