If you’re thinking of it, ask!
Do not dismiss your idea, thought or question as silly, a waste of time, or any other negative frame. Oftentimes people will not ask their question. They are worse off for not knowing the answer and satisfying their curiosity.
Other people lose out too. As the person you were going to ask loses the opportunity to possibly shine with their knowledge and response, feel valuable or helpful and get a boost of pride or self-esteem for helping someone out.
When in any doubt, simply smile and ask. Your life may dramatically change for the better and so might the life of the responder.