Multiple inheritance can be confusing, but it's also powerful. There are generations of Java programmers who have decided that because Java doesn't have multip

Multiple inheritance can be confusing, but it's also powerful. There are generations of Java programmers who have decided that because Java doesn't have multiple inheritance, it must be bad. People mostly use frameworks these days, so inheriting from the framework uses up our one opportunity to have inheritance. Then when we would like to use it later to consolidate common code, we can't. Or we use ActiveRecord, but then can't actually, god forbid, model our domain using an inheritance hierarchy. At this point, I think OO has failed to live up to its promise, and I instead use functional programming and macros.