A counterexample: trace programs and debuggers manage to look inside a running program which was not prepared for them. Techniques vary, but usually involve setting interrupts or acting as an alternate environment.

There is coupling of course, provided by POSIX or the win32 API. The key is that coupling is restricted to well-defined interfaces.

After Compline,
Zaxo

In reply to Re: How realistic is separation of computation from it's display? by Zaxo
in thread How realistic is separation of computation from it's display? by princepawn

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