Every bear market is a test for retail investors, but for exchanges, it's a matter of life and death. The pioneer of perpetual contracts, BitMEX, is officially bowing out. Operations cease on September 23. The market has gone completely cold. Liquidity is drying up, stockpile games are in play, and the profit-making effect is nearly gone. Top exchanges are pulling out all the stops—listing new coins, boosting order book depth, integrating prediction markets, and launching traditional finance perpetual contracts—all just to retain users. Exchanges may die, but the market won't. Yet in this winter, only a few are destined to survive.