who knows

Phrase

A rhetorical question asked to show that the person asking it neither knows the answer nor knows who might.

Japanese Meaning

「who knows」は、答えや状況が不確定であることを示すための表現です。日本語では「誰が知っているだろう」や「どうなるか分からない」といった意味になります。

We asked when the exhibit would reopen, but who knows?

展示がいつ再開するのか私たちは尋ねたが、誰にも分からない。

Sense（1）

A rhetorical question asked to show that the person asking it neither knows the answer nor knows who might.

It could be one or the other, or both. Who knows?

Sense（2）

A rhetorical question asked to express the idea that anything is possible or that anything could happen.

Who knows? Maybe someday he'll finish writing his book and make lots of money selling it.