Jared imagines an experiment called the 7-11 milk experiment. Imagine that someone has run out of milk. We take them to the nearest 7-11. We give them the cash to buy milk. There should be a 100% milk-purchasing result.
That’s what Jared does with websites. He gives people the cash to buy a product, brings them to the website and asks them to purchase the product. Ideally you should see a 100% spending rate. But the best performing site—The Gap—got a 66% spending. The worst site got 6%.” —Adactio: Journal—Jared Spool: The Secret Lives of Links