a lot of the things being pointed out seem like non issues. It seems to me that this doesn't really explore that knowledge in head UIs are actually a lot more straightforward and easy to use with the knowledge in head. Most attempts to circumvent that bloat UIs. Also whatever you give people, if it's a repetitive use UI they tend to learn it and turn into knowledge in head, even if its a knowledge in world type of UI, you then change it and people get confused.
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