My personal favourite is to break from staring after 30 mins, exclaim, “Hang on, we’re going about this completely back to front!” then spend the next hour deriving from first principles, only to arrive back at the original problem, but now with slightly different notation. At which point I realise that all I’ve done is get myself back to my starting point… Then it’s back to the staring.
My personal favourite is to break from staring after 30 mins, exclaim, “Hang on, we’re going about this completely back to front!” then spend the next hour deriving from first principles, only to arrive back at the original problem, but now with slightly different notation. At which point I realise that all I’ve done is get myself back to my starting point… Then it’s back to the staring.