Speaking of which, imagine combining that with a search tool that could also see what windows you had open and which one was in focus and the search tool could ask your text editors and IDEs to tell it what language was in use at the current cursor position and use that for filtering results.
So I press meta + space on my keyboard and a search box overlay pops up on my desktop.
The search box talks to my text editor and IDE windows and learns that currently I have an IDE open with Python 3 code in focus and aditonally I have two HTML files and three JavaScript files open.
I type date.
First result is Python 3 date module documentation from the official Python 3 docs of which I have a local copy.
Second result is HTML5 date element documentation from MDN of which I have a local copy.
Third result is JS Date object documentation from MDN of which I have a local copy.
Furthermore there are results of local copies of Stack Overflow questions about Python 3, HTML5 or JS that talk about “date”.
That’d be quite nice.