#美国非农就业数据未达市场预期 Quantitative trading and physical business are essentially the same thing.

Both use fixed rules to execute processes, earning the price difference through "probability advantage + scale effect." The core can be broken down into three parts:

**Strategy as Business Model**

Quantitative strategies are like restaurant recipes—reusable and iterative. Backtesting is like tasting dishes, and live trading is like opening a restaurant. Using rules to run processes, executing repeatedly, and scaling up to increase profits.

**Risk Control as Cost Management**

Stop-loss and position sizing are comparable to loss control and inventory management in business. Essentially the same—protect the principal and avoid losing everything at once.

**Profit as the Spread Between Buy and Sell**

Trading earns from volatility and arbitrage, while business profits from the difference between sales and costs. Both rely on repetition and efficiency optimization.

But in reality, offline physical stores hit a ceiling very quickly.

No matter how much content marketing is done in first- and second-tier cities, the offline foot traffic is limited. Online traffic is large, but platforms won't give you business for free—advertising costs, utilities, wages, social security, product issues, a bunch of things pile up and make it hard to breathe. During economic downturns, you still have to compete with risks and rivals.

Trading is different. It has high liquidity, operates in global markets, and offers many opportunities. Of course, it also demands high personal capability. But you don't need to worry about those Web2 trivialities—just master your trading system (opening/closing positions, stop-loss, mindset), align knowledge and action, and you have a chance to earn wealth within your understanding.

Compared horizontally, I still prefer the path of trading.