He pointed out that certain people in the population, who are otherwise completely normal, had the following peculiarity: every time they see a number, it's colored.
او اشاره کرد که افراد خاصی در یک جمعیت، که از هر نظر کاملا معمولی هستند، یه مشخصه خاص دارن -- هروقت که اونا یه عدد رو میبینن، رنگیه.