There’s a difference between not knowing everything and not knowing something important.
You don’t need a complete business plan to explore an idea.
But you might need to know whether people actually want what you’re thinking about creating.
Or maybe you need to understand what it will cost.
Or whether you have the skills or resources to make it happen.
Instead of trying to answer every question, ask:
What’s the one thing I need to know next?
Find that answer.
Then let it lead you to your next question.
That’s how ideas become clearer.