“They Laughed When I Sat Down At the Piano — But When I Started to Play!”
John Caples, 1926 — the most effective direct-response headline ever written
John Caples wrote Tested Advertising Methodsin 1932. He invented systematic split-testing in advertising — before computers, before “A/B testing” was a phrase, before “growth hacking” existed as a concept.
His core belief: marketing should be as measurable and testable as engineering. Run the test. Read the number. Improve.
We named this product after him because the founders building with Cursor, v0, and Supabase are engineers who think exactly the same way. They just need marketing that meets them where they are — systematic, evidence-based, and direct about what works.
That 1926 headline is also the story of every technical founder who decides to handle their own GTM: the room doubts you, then you ship.