After paying attention to the prediction market, I increasingly find that it is quite similar to binary options in many ways. Although they are not identical, from a certain point of view, the forecasting market can be said to be an expansion form of binary options. Predicting the market, such as Polymarket/kalshi/Opinion, uses yes/no binary contracts. The price reflects the market's consensus on the probability of an event occurring, such as predicting whether BTC will exceed $100000 in January 2025, with prices fluctuating between 0 and 1. The real-time price reflects the market's consensus on the probability of an event occurring. If the price is 0.7, it means that people in the market believe there is a 70% probability of it happening. When it expires, settlement is based on the result. If it occurs, it is worth 1, and if it does not occur, it is worth 0. Does this look very similar to binary options? The core of binary options is also based on the prediction of "yes/no" or "occurrence/non occurrence". For example, a binary option contract may stipulate that if Tesla's stock price is above a certain level on the expiration date, a fixed amount (such as $1) will be paid, otherwise $0 will be paid. This is essentially a pricing of event probability. That is to say, it is essentially a predictive behavior for future events. Some financial players use binary options as a tool for predicting financial events in practice. Simply put, both estimate the probability of future events occurring based on market prices (contract price 0.6, meaning the market considers the probability of events occurring to be 60%), and combine the wisdom of many participants in the market. They also allow participants to speculate (bet on the outcome of events) or use it as a risk hedge. Binary options are like a financialized version of predicting the market. There are also some differences. The predicted market scope is broader and can include any verifiable event, such as non-financial events such as weather/movie box office, etc., and the event span is also more flexible. Binary options mainly focus on predicting the prices of financial assets, such as foreign exchange/stocks/commodities, and typically have shorter expiration times (a few minutes/days). In terms of market liquidity and depth, binary options are more speculative and speculative, and liquidity depends on the broker; The prediction market emphasizes more on the accuracy of event prediction, and even predicts better than polls (after all, participating with real money is still different), and incentive mechanisms encourage the input of real information. Finally, in terms of regulation and legality, binary options are considered high-risk financial products in some countries (such as some parts of the European Union), strictly regulated, and even not allowed to participate in some places (due to their spinach nature); In the United States, trading requires exchanges regulated by the CFTC (Commodity Futures Trading Commission). At present, the cryptocurrency prediction market is still in its early stages and the regulatory framework is not yet clear enough. In the future, it may be gradually regulated due to "manipulation events" or other factors. These differences may lead to different paths for the prediction market, and there will also be differences in future regulation.