"You could write a program that continued to add 1+1 forever, and that would take 100% of the CPU as far as Task Manager is concerned."
No it wouldn't. If it doesn't hit the OS periodically, then it is flagged as non-responsive. If it can boot the OS and run at least subset tasks, then chances are it can run more complicated ones. You are grasping at straws here. Please don't embarrass yourself so openly.
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