The promo video demonstrates the search enhancing power of the True Knowledge Firefox Add-on, and shows it working in a browser at a speed that is commensurate with its actual performance.
The tech video gives you an idea of the logic architecture that enables the add-on to do what it does.
Using a screen recorder you end up with slow, boring video of a UI. I prefer to create the screen action to ensure that it hits the voice-over cues right on the button. I can also move the screen about in 3D to keep visual interest on what is essentially a screen of a screen.
The True Knowledge’s technology evolved into Evi and is now integrated into Alexa.