Adding to this, the title shown above the card is misleading. The title should be the actual question from Stack Overflow, not my own search query.
I ran into this searching "rust convert u64 to f64" and thought the card was linking to an answer to my exact question. Instead it linked to a question about converting &i32 to f64, which is an important distinction (f64 implements converting from i32 but not u64).
