I understand and sympathize with your point of view, but a general bars open policy with a kernel is not a necessity for general computing. Let's focus on the i

I understand and sympathize with your point of view, but a general bars open policy with a kernel is not a necessity for general computing. Let's focus on the idea that you don't have to vet your code by the maker of the device, not that your tentacular code needs to access every single memory address.