Open this lesson in your favourite AI. It'll walk you through the why, explain the demo, and quiz you on the try-it list.
Reach and engagement rate measure different things and optimizing for one often harms the other — a post seen by 100,000 people with 0.2% engagement tells a different story than one seen by 2,000 with 12% engagement. Knowing which metric actually signals content quality for your specific goal prevents optimizing vanity over value.
Use these three in order. Each builds on the one before.
In one paragraph, explain the difference between reach and engagement rate and when each metric matters more.
Walk me through how a platform's algorithm uses engagement rate signals differently from raw reach to decide who to show a post to next.
Given a brand account with 50,000 followers where reach has grown 40% but engagement rate dropped from 4% to 1.8% over 6 months, diagnose the most likely causes and propose a measurement plan.