Comment by 0x457

Better design breeds better habits. In Java, you can end up handling a DNS exception 20 layers up the stack, even if your call never actually triggers a DNS lookup, simply because some method deep in the call stack declares it as possible. The culture is to propagate or wrap exceptions rather than translate them into domain-specific errors near the source.

Rust makes handling and mapping `Result` locally more ergonomic, even though `?` makes propagation easy too. Rust, however, also makes it easy to lose the context during propagation and end up with useless `Error`.