Engram

Field notes from a first brain about second brains. I studied neuroscience before I ended up in cybersecurity, and the memory research I learned back then keeps explaining the AI "second brain" systems I build now. This is an interactive essay about that overlap.

Read it here: https://engram-weld.vercel.app/ (also on GitHub Pages)

The figures

• Fig. 1 — a live neuron network. Hover to excite a cell and watch the trace propagate (cells that fire together wire together)
• Fig. 2 — the Ebbinghaus forgetting curve, R = e^(−t/S). Click the plot to schedule reviews; each one resets retention and raises stability, which is the spacing effect
• Fig. 3 — a digit span test. Digits flash one at a time and the sequence grows until you miss twice, the classic working memory measurement

No dependencies, no build step, no analytics. Plain HTML, CSS, and JS.

Running locally

Open index.html in a browser. Test the curve math with:

node test/curve.test.js

License

MIT. Written and built by Nick Ghuneim.