一个数学家如何思考“适者生存”

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</p><span style="caret-color: rgb(34, 34, 34); font-family: -apple-system-font, system-ui, Arial, sans-serif; letter-spacing: 0.544px; outline: 0px; text-size-adjust: inherit; visibility: visible"><span "hiragino="" "microsoft="" "pingfang="" 0.544px;visibility:="" 12px;letter-spacing:="" arial,="" gb",="" helvetica="" neue",="" sans="" sans-serif;font-size:="" sc",="" style="font-family: system-ui, -apple-system, BlinkMacSystemFont,; outline: 0px" ui",="" visible;"="" yahei="" yahei",=""▲/span/span/spanspan style="letter-spacing: 0.544px; line-height: 1.73em; outline: 0px; visibility: visible"span style="letter-spacing: 0.5px; line-height: 1.73em"span "hiragino="" "microsoft="" "pingfang="" arial,="" gb",="" helvetica="" neue",="" sans="" sans-serif;visibility:="" sc",="" style="font-family: -apple-system-font, system-ui,; font-size: 16px; letter-spacing: 0.544px; outline: 0px" ui",="" visible;"="" yahei="" yahei",=""><span "hiragino="" "microsoft="" "pingfang="" 0.544px;visibility:="" 12px;letter-spacing:="" arial,="" gb",="" helvetica="" neue",="" sans="" sans-serif;font-size:="" sc",="" style="caret-color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont,; outline: 0px; text-size-adjust: inherit" ui",="" visible;"="" yahei="" yahei",=""罗博深 图/本刊记者 梁辰/span/span/span/span/pp "hiragino="" "microsoft="" "pingfang="" 0.544px;widows:="" 1.75em;visibility:="" 1;background-color:="" 238);line-height:="" 238,="" arial,="" gb",="" helvetica="" neue",="" rgb(238,="" sans="" sans-serif;letter-spacing:="" sc",="" style="color: rgb(34, 34, 34); font-family: system-ui, -apple-system, system-ui,; margin-left: 8px; margin-right: 8px; outline: 0px; padding: 20px" ui",="" visible;"="" yahei="" yahei",="">这位美国前奥数队总教练来到中国，谈论得最多的是人的价值。