Ignoring unsafe code, .NET cannot have memory leaks. I've read this endlessly from many experts and I believe it. However, I do not understand why this is so.

It is my understanding that the framework itself is written in C++ and C++ is susceptible to memory leaks.

• Is the underlying framework so well-written, that it absolutely does not have any possibility of internal memory leaks?
• Is there something within the framework's code that self-manages and even cures its own would-be memory leaks?
• Is the answer something else that I haven't considered?