Attention budget

Each token has a finite amount of influence to distribute across the rest of the context. Heavy influence on one relationship leaves less for others. The budget is per-token and doesn't grow when the context does, which is why long sessions dilute.

Usage:

"Why does it keep ignoring the schema I pasted at the top?"

"We're well into the dumb zone — every token's attention budget is fixed, but the context kept growing. The signal on the schema is now competing with thousands of newer tokens."