Whichcamefirst,thechickenortheegg?Thisquestionhasremain...
問題詳情：Whichcamefirst,thechickenortheegg?Thisquestionhasremainedunsolvedforhundredsofyears,yetsoonitmightnotbeaproblemanymore—theeggofthefuturemaynot 41 achickenatall.Butifnotfromachicken,wher...