What does it mean that build signal detectors not noise filters?

Instead of blocking noise, create systems that actively surface what matters.

Example: Your team's Slack workspace has 47 channels. One approach: mute 40 channels and hope the right information leaks through. Better approach: build a daily brief — a 10-minute ritual where you scan three specific channels for decisions, blockers, and shipped work. You stop trying to block noise and start detecting the three categories of signal that actually drive your week.

Try this: Pick one information stream you currently manage by filtering (email, news, social feed, Slack). Instead of adding more filters or mute rules, define three specific signals you need from that stream — the patterns that actually matter to your work. Write them down. For one week, scan only for those three patterns. Track what you catch and what you miss. You'll find your hit rate goes up while your processing time goes down.