And it hit me that even this observation has likely already been made to you before - I bet even this question isn't unique, and the meta narrative I'm writing now has all been done before as well. So now I have to ask: have you received a question and observation like this before?
there seem to be 2 themes in this question ('all questions have been asked before', and 'everything in the world has been done / thought of before'). those are both common themes, which i have received both separately and together