As you know, the Rust compiler and many of the public crates is under Apache 2.0 + MIT dual licensing. However, it seems that MIT is almost just a weaker counterpart to Apache 2.0, thus I’d like to question the necessity of dual licensing.  The deal seems to have started years ago with reference to patent related protections. As I mentioned above, I don’t think we can enforce such restrictions as long as MIT licensing is allowed. Adding to that, there are known counter arguments against patent r...