What does 4 billion mean?

In the previous discussions about the rise of $USUAL , this article will talk about the multiple possible factors why some people sell this token and lead to a decline in its price. This is purely my personal opinion, and if there are any errors or omissions, everyone is welcome to provide corrections.
First, profit-taking sell-off at high positions.
Second, misappropriation of funds for selling.
Third, some retail investors sell in segments with quantitative robots.
Fourth, selling influenced by false information.
Fifth, market makers conducting wash trading tests.
Sixth, those who are not optimistic about this project sell to switch tracks.
Seventh, the project team and platform collaborate to cool down pre-market trading, with limited iceberg orders intervening.
Eighth, intervention by exchanges due to other contracts available, leading to a crackdown on long positions.
The attached image below is a diagram of the unlocking time for the USUAL token, which was officially announced by Binance today. From this image, it can also be seen that the total supply of this token is 4 billion, and the circulating supply officially listed for trading before 2025 is only 495 million, with no more to come. Any claims exceeding this amount are rumors.