Yeah I agree, I think one of the biggest mistakes in Swift was coupling reference types to classes. Choosing whether something is a reference type of value typ

Yeah I agree, I think one of the biggest mistakes in Swift was coupling reference types to classes. Choosing whether something is a reference type of value type should have been orthogonal to the class system, if they included classes at all. But in practice I think modern swift uses inheritance very sparingly, and leans much harder on the protocol/extensions system, which is very well design imo