Here's the complete HTML file:
```html
Memory Network
← back | N new node
Del remove
C connect
F focus
R reset
```
It looks like the write permission was blocked. The full file is above — here's what it does:
**Features:**
- **15 pre-seeded cognitive concepts** (Cognition, Memory, Attention, etc.) connected by 27 weighted edges
- **Force-directed physics** — nodes repel each other, edges pull connected nodes together, gentle gravity centers everything
- **Click** a node to select it and trigger an activation pulse that ripples through connections
- **Drag** nodes to rearrange the graph — physics continues around them
- **Double-click empty space** to add a new concept node at that position
- **Double-click a node** to enter focus mode — dims unrelated nodes, highlighting only the node and its direct neighbors
- **Hover** for a tooltip showing connection count and neighbor list
- **N** — add a new node (auto-connects to selected node if one exists)
- **C** — enter connect mode, then click another node to create an edge
- **Del** — remove selected node and all its edges
- **F** — focus on selected node
- **R** — reset to initial state
- **Esc** — clear focus/connect mode
**Visual details:** Nodes breathe subtly, edge thickness reflects relationship weight, activation pulses animate along edges with traveling dots, radial glows surround each node, and focus mode smoothly fades unrelated parts of the graph.