Here are two quotes about giving solutions when you don’t understand the problem:
… there is always a well-known solution to every human problem — neat, plausible, and wrong.
Book of Prejudices, Second Series, by H. L. Mencken, 1921.
… advice, tinged with the reckless courage of the non-combatant.
Chronicles of Clovis, by H. H. Munro (“Saki”), 1912