End of Support

The letter came on real paper, which is how I knew it was bad.

Nobody mails paper anymore unless they want you to keep it, or unless their lawyers told them to. Cohren Neuro did both. The envelope sat on my mother's kitchen counter for three days before I noticed it under the fruit bowl, and by then she had already read it four times and decided not to mention it. End of service notification. The Vera 4 cortical lattice, model line discontinued, security and calibration support terminating on the thirty-first of December, 2044. We thank you for being part of the Cohren family.

My mother had a piece of foreign hardware woven through the memory structures of her brain, and the company that made it was telling her, on cardstock, that they were turning off the lights.

Most people only know the lattice from the ads. When Lucille started forgetting which of her grandchildren was which, the scans showed the plaques already spreading, the old slow kind that used to be a death sentence in eight or nine years. The lattice didn't cure that. It bridged it. A mesh of electrodes thinner than spider silk, laid over the regions that were going dark, learning her patterns, holding the connections open that the disease kept trying to close. For six years it worked. She kept her recipes. She kept my father's voice, even after he was gone. She kept me.

The calibration was the catch. The mesh drifted, the way anything in a living body drifts, and twice a year a tech would sit her down and spend an afternoon retuning it against her, nudging the signal back to true. Without that, the readings would wander. The bridge would start dropping spans.

"So we go to the new one," I said. We were at her table. I had the letter flat between us like evidence. "The Vera 6. They have a migration program, it says right here, priority scheduling for existing patients."

"I read it."

"They take the old one out, they put the new one in, you don't even lose a season."

"Cora." She put her hand over mine, and her hand was steady, which it had stopped being for ordinary things like coffee but never was for this. "Do you know what the migration is? They map what the old lattice is holding. They copy the pattern over to the new one. The new mesh learns me from the old mesh instead of from me."

"That's the point. That's so you don't lose anything."

"It's a copy of a copy." She wasn't upset. That was the thing I keep coming back to. "I asked the counselor. The honest one, the second one they sent. After two migrations, three, the person the lattice is holding open isn't the woman they first laid it down on. It's the woman the machine remembers. She's very good. She's seamless. She just isn't me, exactly, and you can't measure the difference. You'd only have to live in it."

I didn't have anything for that. The counselor's name was Sloan and I wanted to call her and yell, except I'd met her, and she hadn't sold us anything. She'd come the second time precisely to say the part the brochure didn't.

"I have until December," my mother said. "That's almost a year. That's a long time, Cora."

I told her it wasn't. I told her a lot of things that spring. I made appointments she canceled. I printed out studies. I found a clinic in Lisbon doing direct re-lay, fresh mesh learning from the live patient, no copy, and she listened to the whole thing with her chin in her hand and then asked me if I remembered the house in Truro, the one we rented the summer I was nine, and I said of course, and she said good, because she wanted me to be the one who remembered it now. She was already moving things to me. I didn't see it yet.

The drift started in the summer, once the last calibration ran out.

It came in slow and it came in polite, almost. She'd reach for a word and find the one next to it. She called the microwave the icebox for a week and laughed about it. Then the laughing got harder to find, because to laugh at losing a word you have to remember that you used to have it. The bridge was dropping spans, one at a time, in no order I could predict, and Cohren's app showed me the whole thing as a green field going gray, pixel by pixel, with a number at the bottom that I learned to stop looking at.

Here is what I did not expect. She had a plan.

While she still had the words for it, that summer, she sat me down with a recorder, the cheap kind, voice only. She said the screen ones felt like being interviewed by her own ghost. And she went through it. Where my father's wedding ring was and who it was for. The recipes, said out loud, with the parts she did wrong on purpose because that was how her mother had done them. The fight we'd had when I was twenty-two, her side of it, finally, and an apology I'd stopped expecting. The house in Truro, every room.

"I'm not doing this because I'm scared," she told the recorder, told me. "I'm doing it because I get to. Most people who go the way I'm going, it takes them before they can pack. I get to pack."

By October she didn't always know the year. By November she knew me about half the time, and the other half she was warm to me anyway, this kind stranger her body trusted. The grace of it nearly broke me, honestly. She was not frightened. The disease that should have terrorized her had been held off so long that by the time it arrived she'd had years to make her peace, and the lattice had given her the one thing nobody with her diagnosis ever got, which was time to choose her own exit from herself.

I asked Sloan, near the end, why they didn't just keep the old line running. Surely it cost them almost nothing.

"Liability, mostly," she said. We were in the hall outside my mother's room. "An uncalibrated lattice can misfire. It can hold open the wrong things, loop them. People can get stuck in a bad afternoon for weeks. Turning it off clean is kinder than letting it rot in there." She looked at the door. "Your mother understood that better than the engineers did. She told me she'd rather come apart than be kept going as someone she wasn't."

The thirty-first came. I was there. I'd thought there'd be something to watch, a light, a sound, but a lattice going dark is just a person sleeping, and then a person sleeping more. The app on my phone hit zero at 11:52 in the morning and I didn't know until I checked it that night, because by then it had stopped mattering which exact minute the last span dropped.

She lived eleven more days after the mesh went quiet. The body knew fewer things every morning. But she'd packed. Everything she wanted carried out had already been carried out, into the recorder, into me, into the index cards I kept finding in drawers for a year afterward in her handwriting from when her hands were still sure.

The last thing she said that I'm certain she meant for me, she said on the second of January, holding my hand, looking at the window and not at my face. She said, "Tell me about the house in Truro."

So I did. I told her every room. I had it because she gave it to me. And I watched her listen to her own life come back in someone else's voice, the way she'd planned it, her eyes moving like she was walking the hallway again, her thumb going still against my knuckles when I got to the porch and the sound of the water.

I still have the recorder. I haven't played it. I don't need to yet. But I keep it charged, because some night I'm going to reach for a word and find the one next to it, and I want to know her voice will be there to hand it back.