Genetic disorders are an inevitable consequence of the transmission of human life, and which family they turn up in has nothing to do with the curse of heaven or retribution, but is simply the result of random chance.
罕見疾病是人類生命傳承中必然會出現的狀況，病落誰家實際上無關天譴、報應，只是機緣湊巧的「意外」罷了。