Show HN: Supermemo – a single stream for notes with chat-style retrieval

I’ve tried a lot of note systems and kept running into two problems:

Capture friction: before writing anything down, I had to decide where it belonged (which app, which doc, new vs existing).

Retrieval friction: when I needed something later, it was scattered across notebooks/docs, and the "real answer" often lived across multiple notes that evolved over time.

I didn’t want better folders or navigation. I wanted a better context engine. One place to capture continuously, and a way to ask questions that pull from the full stream. So I built Supermemo. It’s a single running stream for notes + an AI-powered way to query and synthesize across them.

If you try it, I’d love the feedback, especially on what feels right vs annoying, and what you wish it did.