When search engines control the lifeline of the Internet economy, the typical Internet applications created by search behavior will influence all people and things related to it. We can temporarily refer to the economic model generated by these related behaviors as the search economy.
What are the keywords? They can be any word in any language, mainly composed in text form. The essence of text is to serve the expression of thoughts. When we choose keywords for searching, each word is inevitably purposeful, and this purposefulness can be divided into explicit meaning and implicit meaning. Explicit meaning refers to having a clear search intention, while implicit meaning refers to the true search motivation behind the explicit meaning. When a keyword contains these two layers of connotation, we don't need to make a strict distinction, because the economic thinking mode allows us to make the fastest and most direct decisions based on our existing experience and environment.