At the same time, I had typeahead find and completion for method and variable names back in the 90s with vi/emacs and exuberant ctags. It didn't need that much

At the same time, I had typeahead find and completion for method and variable names back in the 90s with vi/emacs and exuberant ctags. It didn't need that much cpu or ram mojo. We tend to use whatever is available.