Chapter 04 / Field Adoption
Paperwall
Slide 17 / Signal Count
Field memoAction after repeated sightings

The third signal moves the crowd.

Volunteer action rate by repeated signal count A four bar chart shows action rate rising from 4.3 percent at no recall to 31.6 percent after three or more sightings, a 3.2 times lift versus one sighting. Volunteer action rate N=18,420 / 90-day field panel Share who joined, donated, or recruited within seven days 0 10 20 30 40% 4.3% NO RECALL 9.8% ONE SIGHTING 17.4% TWO SIGHTINGS 31.6% THREE OR MORE 3.2× Lift versus one sighting repeat, paste, recruit Read: repeated public signals convert attention into declared action, not just awareness.