# Interactions

Not all memories are equal. **Interactions** are the signals that tell Neocortex what matters.

## How It Works

When knowledge is viewed, referenced, reacted to, or built upon, its importance increases. Memories that nobody interacts with gradually fade. This mirrors how the human brain works you remember things you think about, discuss, and act on.

## Types of Signals

Different types of engagement carry different weight:

* **Views:** The memory was seen or surfaced to a user
* **Reactions:** A user reacted to or acknowledged the memory
* **Replies:** The memory was referenced in a conversation
* **Content creation:** New knowledge was built on top of this memory

Higher-signal interactions (like building on a memory) reinforce it more than passive ones (like viewing it).

## Why It Matters

The interaction model means Neocortex **gets smarter over time**. The more your application uses the memory, the better it becomes at surfacing what's relevant.

A piece of knowledge that gets recalled frequently becomes more durable. A fact that was ingested once and never accessed again naturally fades exactly like how human memory works.

<div align="center"><img src="https://4045923655-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEDwgPtt4WNgIKI2pHa3w%2Fuploads%2Fgit-blob-00d5028830968ebda7185396e7939ec54e49197a%2FBobMemoryDecayVideo.gif?alt=media" alt="Interaction-weighted memory" width="700"></div>
