A parade of tourists is going to walk past your store today. Each is a separate opportunity for you to tell a story, to engage, to make a sale.
A connected community of readers is going to read what you wrote today. A cultural shift will occur among a small group of people because they will share, discuss and engage with each other about what you wrote.
Here’s the key question: are you trying to change an individual or are you trying to incite/inspire/redirect the tribe?
Direct marketers traditionally deal with separate events. Each catalog, each clickable ad is a unique transaction. In the world of separates, the simple test makes sense. You don’t pollute the pool when you try different transactions or different products with different people.