Why is being in cash considered the highest state of trading?

Going short and staying in cash: is to avoid buying out of complacency after making profits;
Going short and staying in cash: is to clearly see the market and catch the right rhythm;
Going short and staying in cash: is to wait—to wait for an opportunity with a relatively higher chance of success, to turn the tables;
Going short and staying in cash: is to improve the probability of success, and steadily rise from the previous foundation to achieve results.

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