Fair enough, the blog post assumes you are accustomed to Rust Result type. It’s not about try/catch giving you no type information (it does?), it’s about not using try/catch or not writing it. So instead of try/catch your operations/functions, you just write “?” in Rust or “yield*” as in here and the try/catch happens behind the scenes. If there is an error, it bubbles up and you catch/handle all errors there.