Sentence examples for serious open question from inspiring English sources

Whether similar bot-type teaching things should have roles in places where actual teaching happens is a serious, open question.

To expand on one issue, there is a serious open question as to whether the indeterminism in quantum mechanics is simply the result of ignorance due to epistemic limitations or if it is an ontological feature of the quantum world.

Whether it could sustain a serious restaurant was still an open question.

There were too few written comments in the open question for a serious thematic analysis; however, several students commented on their satisfaction of the lab session.

Just how serious the tensions are is still an open question.

But what remained an open question, at least until last Friday, was whether the militant threat in Mali was serious enough to justify military intervention.

An "open question"?

It is an open question.

It seems an open question.

It's an open question.

That's an open question.