It is mentioned in the video.
It has to be said that the video content was very cool but…
- that constantly scrolling bokeh background was a severe pain on the eyes (and the later starfield not much better)
- the narrator’s vocal ‘style’ was almost designed to induce sleep. No variation - every sentence had exactly the same cadence - it was like listening to someone reading a list. Which is pretty much what the script was - a list of facts. But it could have had a little more life in it! Dare I say it sounded robotic?