StretchLearn Course
Learn the math and psychology behind viral growth — then build the loops yourself.
Course Overview
This course decodes the science behind products and campaigns that spread organically. You will learn how to calculate viral coefficients, map sharing triggers, and design referral mechanics used by Dropbox, Airbnb, and Notion. Every lesson delivers a reusable framework you can apply to your own brand the same week.
Learning Outcomes
Calculate a product's viral coefficient (K-factor) and identify the levers that move it
Map the five psychological triggers that drive sharing and apply them to your own messaging
Design a closed referral loop with dual-sided incentives that sustains itself over time
Build a word-of-mouth seeding strategy using micro-influencers and community nodes
Audit an existing campaign for shareability and rewrite its call-to-action for higher spread
Construct a 90-day viral-growth experiment plan with measurable success criteria
Curriculum Preview
Preview the course structure, see how the modules build on one another, and understand the path this program is designed to take you through.
Understand what virality actually means — mathematically and psychologically — so every tactic you build has a principled foundation.
Design, build, and optimize a self-sustaining referral program using dual-sided incentives, friction audit, and cycle-time compression.
Identify and activate the high-leverage nodes in your audience's network — micro-influencers, community moderators, and superfans — to ignite organic spread.
Design the specific product features, content formats, and campaign mechanics that make your brand a natural topic of conversation.
Built for Application
This program is designed around progression: focused lessons, structured modules, applied resources, assessments, and a course rhythm that turns information into usable capability.