Finally a good tool to view HN in terminal. Thank you! Where can I find the keyboard shortcuts? I can move with vim key binding, but can go back.
For navigation in particular you'd use capital D to discard the current buffer and return to the previous page. There's also , (comma, back) and . (period, forward), which non-destructively cycle through the stack.
(Well, it's really a tree, but the UI mostly treats it as a stack.)