Have you noticed that the vast majority of retail investors focus solely on 'how much it went up or down,' chasing the rise and killing the fall by staring at K-line charts, only to end up more panicked and losing more? But true experts, institutions, and quantitative funds don't blindly guess based on superficial price movements. Instead, they build complete arbitrage systems around a core concept most have heard of but don't fully understand—volatility—to capitalize on market sentiment mismatches. You might often hear people say, 'VIX is up, the market is panicking,' or 'Volatility crashed, risk is coming,' but what exactly is VIX? Why do they say...