Dada was big on randomness. Or what you can call the " aleatory" , the thing left up to chance.
达达喜欢随机 或者可以称之为“偶然” 由运气决定的东西。
英语百科
Aleatoricism
（重定向自Aleatoric）
Aleatoricism is the incorporation of chance into the process of creation, especially the creation of art or media. The word derives from the Latin word alea, the rolling of dice. It should not be confused with either improvisation or indeterminacy.