Just browsing the file feels dangerous, because when you press an action key by mistake, you cannot just cancel it with Esc, you need to undo the change.
At the same time, seems like because of the above, some selections are "disabled", e.g. in Vim to delete to last line is just `dG` (and the cursor doesn't move), here you need to explicitly go into visual mode, jump to the end of file and then delete, what will bring you back to where you started.