My Wife Sent 297 Messages in 15 Days. Not to Me. To the AI I Built Her. The Synapse Story

A 35,000-Token Notion Page and a Copy-Paste Ritual My wife uses LLMs differently than I do. While I use them for code or quick facts, she uses them as a therapist, a life coach, and a sounding board. Over the last year, she built a massive "Master Prompt" in Notion. It contained her medical history, key life events, emotional triggers, and ongoing projects. It was 35,000 tokens long. Every time she started a new conversation in Gemini, she had to manually copy-paste this wall of text just to get the AI up to speed. If she didn't, the advice was generic and useless. She dreaded starting new threads because of the "context set up" tax. She felt like she was constantly repeating herself. And the prompt grew every week because life kept happening. She didn't need a search engine or a simple chat history. She needed a continuous brain. So I built Synapse. An AI chat with deep memory, powered by a knowledge graph, designed for the kind of personal conversations that actually need the AI to k