When your language has to include a built-in swapper to manage the memory you know you are suffering from the second system effect. I disagree. Today, this fu

When your language has to include a built-in swapper to manage the memory you know you are suffering from the second system effect. I disagree. Today, this functionality is so widely needed that it is built into every operating system. Therefore applications that rebuild it either have a specialized need or are over-engineered. But back then, operating systems did not have that functionality. And it was pretty easy to hit the limits of RAM. So it then becomes reasonable to build the feature.