I think this is a noble idea. One thing that makes it difficult is that a computer is designed to execute arbitrary programs. People will always be tempted to "

I think this is a noble idea. One thing that makes it difficult is that a computer is designed to execute arbitrary programs. People will always be tempted to "improve" whatever the specification is for this forever computer. A related thing to think about is what it would take so we don't lose the ability to view old documents or run old programs. Presumable header info in documents, saving versions of programs and having emulators for old machines would by part of the solution. I'm not sure if it would be worth the effort to enact, but it is probably worth thinking about.