Perhaps our definitions of "basic text navigation" are different. I'd include capabilities such as "jump six words to the right, based on natural word boundarie

Perhaps our definitions of "basic text navigation" are different. I'd include capabilities such as "jump six words to the right, based on natural word boundaries" and "jump six words to the right, based on whitespace only". Oh, and "jump to the end of this statement that's enclosed by parentheses". Not trying to start a vim-vs-whatever war here, though I suppose that's inevitable in a discussion of tabs-vs-spaces...