There's no limit to how many arrays you can xor together to get "Hello, World!". They're all essential in the sense that removing any of them causes the result

There's no limit to how many arrays you can xor together to get "Hello, World!". They're all essential in the sense that removing any of them causes the result to fail. I am interested in awkward and arbitrary code optimization problems like code golf. But you can just take this one to infinity in a number of different ways.