It's obvious because it's essentially just try/catch (as I'm sure you know) but misses the whole point of why they propose anything different. The point of 'ha

It's obvious because it's essentially just try/catch (as I'm sure you know) but misses the whole point of why they propose anything different. The point of 'handle' is that it applies to ALL FUTURE calls to check in the function body. If we're going to consider alternatives we need to at least address the authors perspective (even if just to deny it). I guess the proposal's central idea is that once you see an error, error handling is going to be focused on rolling back various stages of partial progress. It's the complement to how 'defer' incrementally accumulates guaranteed execution in the face of either a return or unwind. That said, how common this issues is and if it's worth optimizing for is more up to debate. It would be nice to see a lexicon of well handled errors; for 90% most of what I do log and unwind is sufficient. What do I know -- I actually like Java style checked/unchecked exceptions and think they'd work well for Go as the parent said. For what I'm up to it's often sufficient to just not leak partial progress via side effects. All the partial progress just evaporates into the GC. 'finally' or 'defer' takes care of most of the .close() or .unlock() calls. The change I'd make to Java-style exceptions if I had a time machine is to make all exceptions types unchecked. Instead of looking at exception's types at all, enforce checks only if a function has 'throws' declared. Calls to 'void close() throws IOException' would still need to be checked but a function containing 'throws new IOException()' isn't forced to declare throws or catch it. This lets API's be explicit and force due diligence but lets user code intelligently allow unwinding until it's caught at the appropriate level. Some sugar for code to acknowledge the checked error and unwind could be nice I suppose. I think fattening out Go's err's to full exceptions with stacktraces is more pressing personally.