The thing that has bitten me the most is somewhat related: the lack of any uniform “deep copy” or immutability support. Sure I can make a `chan Foo` but if Foo

The thing that has bitten me the most is somewhat related: the lack of any uniform “deep copy” or immutability support. Sure I can make a `chan Foo` but if Foo is a struct with an embedded pointer in it you just aliased a pointer you probably didn’t mean to. If there was supported for optional value types rather than using pointers that would help too.