多数商业银行家循规蹈矩，在银行领域渡过多数职业生涯。 他们并没有过从证券交易所底层做起直到坐上银行高管宝座的经历。
Most are commercial bankers who have spent their careers working steadily through the branches rather than boarding the express lift from the bond-trading floor straight up to the executive suite.
另一些人——让人们担心——不但替换了当地技艺，而且压低了底层职业的工资水平。
Others—it is feared—displace local skills and depress wages at the bottom.
好的，有人可能会说，软件只是一个未成熟的工程分支，在我的职业生涯中，大约每五年软件项目的底层技术就要翻新一次。
OK, one might say, software is simply an immature engineering discipline. In my professional career, the technologies underlying software projects have turned over about every five years.
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