“A 'gym girls thank me later' selfie hook you can use to sell a health & fitness app - hand-swipe at four seconds into dark-mode screen recordings of muscle heatmaps.”

This app demo TikTok post pulled 1.1M views - 1015× what the account typically does (~1.1K views on a normal post). That gap is what Handler calls an outlier: the breakout came from the content's structure, not the account's size.

Engagement pull sits at 2/5 (1.4% weighted), measuring how hard the post moved viewers to save, share, and comment - the actions that signal real intent, weighted heaviest. The product behind it: A gamified workout and strength-tracking app.