This question already has an answer here:
Suppose a question is off-topic because it is not about Judaism; can it simply be made on topic by adding in a Jewish motivation, or by adding the words "according to Judaism"?
Consider this recent example:
The question originally asked:
If I can't prove that God exists, does that mean I don't know He exists?
I absolutely believe/know that God exists, but can't prove it(except through logic; which, for some reason, isn't good enough for too many people). If I can't prove it, does that mean I can't know He exists?
This was put on hold as off-topic because the question of whether you can know something without proving it is not a question about Judaism.
The title was then edited to:
In Judaism, if I can't prove that God exists, does that mean I don't know He exists?
Then the question itself was edited to explain the Judaism motivation:
The answer is necessary in order to fulfill the mitzvah of knowing God(Anochi HaShem). If we can't prove that God exists, how can we claim to know Him? Unless the Torah considers believing to be knowing(which is a separate question in and of itself).
And then it was reopened.
So is a motivation within Judaism enough to make a question on topic? Consider the following question:
Did the Dallas Cowboys win the Super Bowl in 2018?
At first glance I think everyone would agree that it's off-topic. But what if I made the following edit:
The answer is necessary because if someone effected a marriage with this as a condition, the answer would affect whether the marriage was effective according to Jewish Law.
Is the question now on topic because the answer has potential relevance to Judaism?
If not, where do we draw the line?
What about adding the words "according to Judaism"?
In the knowledge question above, is it on-topic if it asks:
According to Judaism, can you know something without being able to prove it?
This is explicitly about Judaism, but the underlying question is still not a Judaism question. But perhaps Judaism has a unique view even on a basic factual question? For example, the question of how old the world is, or whether evolution occurred, seems to be a basic factual question, but I think the following question might be considered on-topic:
According to Judaism, how old is the world?
Is there reincarnation according to Judaism?
Whether souls get reincarnated is a purely factual question. Yet we apparently assume that Judaism would have a unique opinion on that. So where do we draw the line? If I would ask:
According to Judaism, did the Dallas Cowboys win the Super Bowl in 2018?
Is it on-topic because Judaism might have a unique opinion on this factual question? How do we know which questions Judaism has the right to an opinion on and which questions it doesn't?
Note that the examples here are just to frame the issue. This post is about the general issue, not about any specific question.
Somewhat related: The Parameters of "Jewish Life" Scope