In medieval times, numerologists - those who searched for the mystical significance of Numbers - believed all Numbers had both positive and negative aspects... except for 11.

在中世纪时期，数字命理学家们-那些搜素数字神秘意义的人们-认为，所有的数字都有正负两个方面，…但11除外。

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For example, you shut off the unit or the battery dies, and you have to start at the beginning or go through a medieval process of physically recording track numbers.

CNN: Too soon for totable tunes?