Historically, Trump's statements have had significant effects on the stock market, particularly when related to trade, regulation, or specific companies. However, in this case, the post is focused on promoting a book, which may not have a direct impact on the market. The publishing industry, particularly Amazon, might see a slight increase in sales due to the promotion. The post's tone is promotional and optimistic, which could contribute to a slight increase in consumer confidence, but this effect is likely to be minimal and short-lived. The lack of any direct reference to economic policy, trade, or regulation means that the post is unlikely to significantly influence market sentiment or volatility. Overall, the post's impact on the stock market is expected to be neutral, with potential minor gains in the publishing sector.