老死不相往来的陌生算不算
[lăo sĭ bù xiāng wăng lái de mò shēng suàn bù suàn]
This refers to the question of whether the estrangement between people can be considered true estrangement, where there has been no interaction for so long that they become strangers even though they once knew each other well. It questions how relationships fade over time without communication.