After entering the stock market, you will slowly discover

At first I thought that I was studying technology, but later I discovered that I was studying finance;
After studying finance, you will find that you are actually studying the economy;
After studying the economy, you find that you are actually studying politics;
After studying politics, you will find that you are actually studying history;
After studying history, you will find that you are studying philosophy;
After studying philosophy, you will find that the study is the law;
Finally, after studying the law, you will find that everything is actually studying people
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