> No I mean that the operating system protects applications from messing with each other. The operating system should isolate each app for security purposes.
Oh but that is far incomplete a specification. What security purposes? Who are we protecting, from whom? On whose behalf does the OS isolates applications from each other? If it’s on mine, then you bet I absolutely want the ability to lift that isolation in specific cases. It’s my computer, I decide when and how the rules are broken.
But the moment I have that (a computer and OS that really work for me), I lose the ability to prove that I don’t. If I play an online game, being in control means the game company is not, and I can’t prove to them I’m not cheating.
I’m not aware of any third alternative.
In short the integrity of the application must be secured. This integrity must be protected from everyone. Nothing should be able to violate the integrity of the app.
>I absolutely want the ability to lift that isolation in specific cases.
There is no need for this. Allowing end users to turn off security features is not a good idea. Users should not have to think about such things.
>I decide when and how the rules are broken.
Most users do not want this ability. They just want a computer that works and is safe to use. They don't want to dictate how exactly it was written. That is the manufacturers job.