To become a seller means knowing what other people need, and then creating and providing it—that is the proactive mode, and only then can you generate profit from the middle.

Buyers are often passive: they need a lot of screening, careful verification, and they are also very likely to take on the risk of high premiums—for example, packaging, deception. They may appear to actively control the right to purchase, but in reality they often end up choosing under influence and are still quite passive.