With a shared interpreter/process state, like Python, Java, C, C++, ... Node is not a web page, so no reason to limit it to the same patterns. Then, the next

With a shared interpreter/process state, like Python, Java, C, C++, ... Node is not a web page, so no reason to limit it to the same patterns. Then, the next issue would be thread safety. But that could be treated as a separate problem.